125670131 has 2 divisors, whose sum is σ = 125670132. Its totient is φ = 125670130.

The previous prime is 125670121. The next prime is 125670211. The reversal of 125670131 is 131076521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125670131 - 2¹⁰ = 125669107 is a prime.

It is a super-2 number, since 2×125670131² = 31585963651114322, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125670131.

It is not a weakly prime, because it can be changed into another prime (125670121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62835065 + 62835066.

It is an arithmetic number, because the mean of its divisors is an integer number (62835066).

Almost surely, 2^125670131 is an apocalyptic number.

125670131 is a deficient number, since it is larger than the sum of its proper divisors (1).

125670131 is an equidigital number, since it uses as much as digits as its factorization.

125670131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 125670131 is about 11210.2689976646. The cubic root of 125670131 is about 500.8919160256.

The spelling of 125670131 in words is "one hundred twenty-five million, six hundred seventy thousand, one hundred thirty-one".