1252145240402 has 16 divisors (see below), whose sum is σ = 2190341529600. Its totient is φ = 536633674164.

The previous prime is 1252145240369. The next prime is 1252145240431. The reversal of 1252145240402 is 2040425412521.

It is a super-2 number, since 2×1252145240402² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 912641618 + ... + 912642989.

It is an arithmetic number, because the mean of its divisors is an integer number (136896345600).

Almost surely, 2^{1252145240402} is an apocalyptic number.

1252145240402 is a deficient number, since it is larger than the sum of its proper divisors (938196289198).

1252145240402 is an equidigital number, since it uses as much as digits as its factorization.

1252145240402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1825284630 (or 1825284616 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 32.

The spelling of 1252145240402 in words is "one trillion, two hundred fifty-two billion, one hundred forty-five million, two hundred forty thousand, four hundred two".