245302521132 has 12 divisors (see below), whose sum is σ = 572372549336. Its totient is φ = 81767507040.

The previous prime is 245302521109. The next prime is 245302521193. The reversal of 245302521132 is 231125203542.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×245302521132² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 245302521132.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10220938369 + ... + 10220938392.

Almost surely, 2^245302521132 is an apocalyptic number.

It is an amenable number.

245302521132 is an abundant number, since it is smaller than the sum of its proper divisors (327070028204).

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

245302521132 is a wasteful number, since it uses less digits than its factorization.

245302521132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20441876768 (or 20441876766 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 245302521132 its reverse (231125203542), we get a palindrome (476427724674).

The spelling of 245302521132 in words is "two hundred forty-five billion, three hundred two million, five hundred twenty-one thousand, one hundred thirty-two".