126250012513 has 8 divisors (see below), whose sum is σ = 130141199232. Its totient is φ = 122409034896.

The previous prime is 126250012489. The next prime is 126250012541. The reversal of 126250012513 is 315210052621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126250012513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126250012583) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 12547170 + ... + 12557227.

It is an arithmetic number, because the mean of its divisors is an integer number (16267649904).

Almost surely, 2^126250012513 is an apocalyptic number.

It is an amenable number.

126250012513 is a deficient number, since it is larger than the sum of its proper divisors (3891186719).

126250012513 is a wasteful number, since it uses less digits than its factorization.

126250012513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25104551.

The product of its (nonzero) digits is 3600, while the sum is 28.

The spelling of 126250012513 in words is "one hundred twenty-six billion, two hundred fifty million, twelve thousand, five hundred thirteen".