125776865 has 8 divisors (see below), whose sum is σ = 158876160. Its totient is φ = 95325552.

The previous prime is 125776843. The next prime is 125776873. The reversal of 125776865 is 568677521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125776865 - 2¹² = 125772769 is a prime.

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, 661889 + ... + 662078.

It is an arithmetic number, because the mean of its divisors is an integer number (19859520).

Almost surely, 2^125776865 is an apocalyptic number.

It is an amenable number.

125776865 is a deficient number, since it is larger than the sum of its proper divisors (33099295).

125776865 is a wasteful number, since it uses less digits than its factorization.

125776865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1323991.

The product of its digits is 705600, while the sum is 47.

The square root of 125776865 is about 11215.0285331781. The cubic root of 125776865 is about 501.0336815323.

The spelling of 125776865 in words is "one hundred twenty-five million, seven hundred seventy-six thousand, eight hundred sixty-five".