125954954313 has 4 divisors (see below), whose sum is σ = 167939939088. Its totient is φ = 83969969540.

The previous prime is 125954954291. The next prime is 125954954351. The reversal of 125954954313 is 313459459521.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 125954954313 - 2²² = 125950760009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125954958313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20992492383 + ... + 20992492388.

It is an arithmetic number, because the mean of its divisors is an integer number (41984984772).

Almost surely, 2^125954954313 is an apocalyptic number.

It is an amenable number.

125954954313 is a deficient number, since it is larger than the sum of its proper divisors (41984984775).

125954954313 is an equidigital number, since it uses as much as digits as its factorization.

125954954313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41984984774.

The product of its digits is 2916000, while the sum is 51.

The spelling of 125954954313 in words is "one hundred twenty-five billion, nine hundred fifty-four million, nine hundred fifty-four thousand, three hundred thirteen".