125135049 has 16 divisors (see below), whose sum is σ = 180028800. Its totient is φ = 76857216.

The previous prime is 125134951. The next prime is 125135051. The reversal of 125135049 is 940531521.

It is not a de Polignac number, because 125135049 - 2¹² = 125130953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125135089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19372 + ... + 25010.

It is an arithmetic number, because the mean of its divisors is an integer number (11251800).

Almost surely, 2^125135049 is an apocalyptic number.

It is an amenable number.

125135049 is a deficient number, since it is larger than the sum of its proper divisors (54893751).

125135049 is a wasteful number, since it uses less digits than its factorization.

125135049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6224.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 125135049 is about 11186.3778319883. The cubic root of 125135049 is about 500.1800005252.

The spelling of 125135049 in words is "one hundred twenty-five million, one hundred thirty-five thousand, forty-nine".