125246401577 has 4 divisors (see below), whose sum is σ = 136632438096. Its totient is φ = 113860365060.

The previous prime is 125246401573. The next prime is 125246401591. The reversal of 125246401577 is 775104642521.

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 125246401577 - 2² = 125246401573 is a prime.

It is a super-2 number, since 2×125246401577² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (125246401573) 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, 5693018243 + ... + 5693018264.

It is an arithmetic number, because the mean of its divisors is an integer number (34158109524).

Almost surely, 2^125246401577 is an apocalyptic number.

It is an amenable number.

125246401577 is a deficient number, since it is larger than the sum of its proper divisors (11386036519).

125246401577 is a wasteful number, since it uses less digits than its factorization.

125246401577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11386036518.

The product of its (nonzero) digits is 470400, while the sum is 44.

The spelling of 125246401577 in words is "one hundred twenty-five billion, two hundred forty-six million, four hundred one thousand, five hundred seventy-seven".