125774731 has 2 divisors, whose sum is σ = 125774732. Its totient is φ = 125774730.

The previous prime is 125774717. The next prime is 125774749. The reversal of 125774731 is 137477521.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125774731 - 2⁹ = 125774219 is a prime.

It is a super-2 number, since 2×125774731² = 31638565916244722, which contains 22 as substring.

It is equal to p_7151689 and since 125774731 and 7151689 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (125774771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62887365 + 62887366.

It is an arithmetic number, because the mean of its divisors is an integer number (62887366).

Almost surely, 2^125774731 is an apocalyptic number.

125774731 is a deficient number, since it is larger than the sum of its proper divisors (1).

125774731 is an equidigital number, since it uses as much as digits as its factorization.

125774731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41160, while the sum is 37.

The square root of 125774731 is about 11214.9333925797. The cubic root of 125774731 is about 501.0308479113.

The spelling of 125774731 in words is "one hundred twenty-five million, seven hundred seventy-four thousand, seven hundred thirty-one".