245534120 has 64 divisors (see below), whose sum is σ = 599130000. Its totient is φ = 90021888.

The previous prime is 245534119. The next prime is 245534137. The reversal of 245534120 is 21435542.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 52157284 + 193376836 = 7222^2 + 13906^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 245534120.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75896 + ... + 79064.

Almost surely, 2^245534120 is an apocalyptic number.

245534120 is a gapful number since it is divisible by the number (20) 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 245534120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (299565000).

245534120 is an abundant number, since it is smaller than the sum of its proper divisors (353595880).

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

245534120 is a wasteful number, since it uses less digits than its factorization.

245534120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3342 (or 3338 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 245534120 is about 15669.5283911163. The cubic root of 245534120 is about 626.1868604862.

Adding to 245534120 its reverse (21435542), we get a palindrome (266969662).

The spelling of 245534120 in words is "two hundred forty-five million, five hundred thirty-four thousand, one hundred twenty".