125155417 has 2 divisors, whose sum is σ = 125155418. Its totient is φ = 125155416.

The previous prime is 125155399. The next prime is 125155421. The reversal of 125155417 is 714551521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69488896 + 55666521 = 8336^2 + 7461^2 .

It is a cyclic number.

It is not a de Polignac number, because 125155417 - 2²³ = 116766809 is a prime.

It is not a weakly prime, because it can be changed into another prime (125155427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62577708 + 62577709.

It is an arithmetic number, because the mean of its divisors is an integer number (62577709).

Almost surely, 2^125155417 is an apocalyptic number.

It is an amenable number.

125155417 is a deficient number, since it is larger than the sum of its proper divisors (1).

125155417 is an equidigital number, since it uses as much as digits as its factorization.

125155417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7000, while the sum is 31.

The square root of 125155417 is about 11187.2881879390. The cubic root of 125155417 is about 500.2071368435.

The spelling of 125155417 in words is "one hundred twenty-five million, one hundred fifty-five thousand, four hundred seventeen".