125277665 has 16 divisors (see below), whose sum is σ = 161934336. Its totient is φ = 92769600.

The previous prime is 125277643. The next prime is 125277667. The reversal of 125277665 is 566772521.

It is not a de Polignac number, because 125277665 - 2⁶ = 125277601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125277667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14006 + ... + 21135.

It is an arithmetic number, because the mean of its divisors is an integer number (10120896).

Almost surely, 2^125277665 is an apocalyptic number.

It is an amenable number.

125277665 is a deficient number, since it is larger than the sum of its proper divisors (36656671).

125277665 is a wasteful number, since it uses less digits than its factorization.

125277665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35200.

The product of its digits is 176400, while the sum is 41.

The square root of 125277665 is about 11192.7505556052. The cubic root of 125277665 is about 500.3699462121.

The spelling of 125277665 in words is "one hundred twenty-five million, two hundred seventy-seven thousand, six hundred sixty-five".