142323136 has 56 divisors (see below), whose sum is σ = 293668704. Its totient is φ = 68382720.

The previous prime is 142323131. The next prime is 142323143. The reversal of 142323136 is 631323241.

142323136 is digitally balanced in base 2, because in such base 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 142323136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142323131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191181 + ... + 191923.

It is an arithmetic number, because the mean of its divisors is an integer number (5244084).

Almost surely, 2^142323136 is an apocalyptic number.

142323136 is a gapful number since it is divisible by the number (16) 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 142323136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146834352).

142323136 is an abundant number, since it is smaller than the sum of its proper divisors (151345568).

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

142323136 is an equidigital number, since it uses as much as digits as its factorization.

142323136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869 (or 859 counting only the distinct ones).

The product of its digits is 2592, while the sum is 25.

The square root of 142323136 is about 11929.9260685052. The cubic root of 142323136 is about 522.1057804936.

Adding to 142323136 its reverse (631323241), we get a palindrome (773646377).

The spelling of 142323136 in words is "one hundred forty-two million, three hundred twenty-three thousand, one hundred thirty-six".