125431266 has 16 divisors (see below), whose sum is σ = 251791488. Its totient is φ = 41655600.

The previous prime is 125431211. The next prime is 125431277. The reversal of 125431266 is 662134521.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36945 + ... + 40196.

It is an arithmetic number, because the mean of its divisors is an integer number (15736968).

Almost surely, 2^125431266 is an apocalyptic number.

125431266 is an abundant number, since it is smaller than the sum of its proper divisors (126360222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125431266 is a wasteful number, since it uses less digits than its factorization.

125431266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77417.

The product of its digits is 8640, while the sum is 30.

The square root of 125431266 is about 11199.6100824984. The cubic root of 125431266 is about 500.5743612989.

Adding to 125431266 its reverse (662134521), we get a palindrome (787565787).

The spelling of 125431266 in words is "one hundred twenty-five million, four hundred thirty-one thousand, two hundred sixty-six".