125877649 has 8 divisors (see below), whose sum is σ = 126920000. Its totient is φ = 124839792.

The previous prime is 125877617. The next prime is 125877659. The reversal of 125877649 is 946778521.

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 125877649 - 2⁵ = 125877617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125877659) 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 7 ways as a sum of consecutive naturals, for example, 74587 + ... + 76255.

It is an arithmetic number, because the mean of its divisors is an integer number (15865000).

Almost surely, 2^125877649 is an apocalyptic number.

It is an amenable number.

125877649 is a deficient number, since it is larger than the sum of its proper divisors (1042351).

125877649 is a wasteful number, since it uses less digits than its factorization.

125877649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2247.

The product of its digits is 846720, while the sum is 49.

The square root of 125877649 is about 11219.5208899489. The cubic root of 125877649 is about 501.1674705699.

The spelling of 125877649 in words is "one hundred twenty-five million, eight hundred seventy-seven thousand, six hundred forty-nine".