125231087 has 2 divisors, whose sum is σ = 125231088. Its totient is φ = 125231086.

The previous prime is 125231083. The next prime is 125231101. The reversal of 125231087 is 780132521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125231087 - 2² = 125231083 is a prime.

It is a Chen prime.

It is equal to p_7122539 and since 125231087 and 7122539 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125231083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62615543 + 62615544.

It is an arithmetic number, because the mean of its divisors is an integer number (62615544).

Almost surely, 2^125231087 is an apocalyptic number.

125231087 is a deficient number, since it is larger than the sum of its proper divisors (1).

125231087 is an equidigital number, since it uses as much as digits as its factorization.

125231087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 125231087 is about 11190.6696403745. The cubic root of 125231087 is about 500.3079263238.

The spelling of 125231087 in words is "one hundred twenty-five million, two hundred thirty-one thousand, eighty-seven".