245123142132 has 144 divisors (see below), whose sum is σ = 632524677120. Its totient is φ = 73826786880.

The previous prime is 245123142101. The next prime is 245123142151. The reversal of 245123142132 is 231241321542.

It is a happy number.

245123142132 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 245123142132.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 210767383 + ... + 210768545.

It is an arithmetic number, because the mean of its divisors is an integer number (4392532480).

Almost surely, 2^245123142132 is an apocalyptic number.

245123142132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245123142132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (316262338560).

245123142132 is an abundant number, since it is smaller than the sum of its proper divisors (387401534988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245123142132 is a wasteful number, since it uses less digits than its factorization.

245123142132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1954 (or 1941 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

Adding to 245123142132 its reverse (231241321542), we get a palindrome (476364463674).

The spelling of 245123142132 in words is "two hundred forty-five billion, one hundred twenty-three million, one hundred forty-two thousand, one hundred thirty-two".