125856087 has 16 divisors (see below), whose sum is σ = 193543680. Its totient is φ = 71256672.

The previous prime is 125856077. The next prime is 125856097. The reversal of 125856087 is 780658521.

It is an interprime number because it is at equal distance from previous prime (125856077) and next prime (125856097).

It is not a de Polignac number, because 125856087 - 2¹⁵ = 125823319 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125856007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25203 + ... + 29780.

It is an arithmetic number, because the mean of its divisors is an integer number (12096480).

Almost surely, 2^125856087 is an apocalyptic number.

125856087 is a deficient number, since it is larger than the sum of its proper divisors (67687593).

125856087 is a wasteful number, since it uses less digits than its factorization.

125856087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55102.

The product of its (nonzero) digits is 134400, while the sum is 42.

The square root of 125856087 is about 11218.5599343231. The cubic root of 125856087 is about 501.1388533898.

The spelling of 125856087 in words is "one hundred twenty-five million, eight hundred fifty-six thousand, eighty-seven".