125576121 has 16 divisors (see below), whose sum is σ = 182953728. Its totient is φ = 75982800.

The previous prime is 125576089. The next prime is 125576123. The reversal of 125576121 is 121675521.

It is not a de Polignac number, because 125576121 - 2⁵ = 125576089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125576123) 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, 20050 + ... + 25556.

It is an arithmetic number, because the mean of its divisors is an integer number (11434608).

Almost surely, 2^125576121 is an apocalyptic number.

125576121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

125576121 is a deficient number, since it is larger than the sum of its proper divisors (57377607).

125576121 is a wasteful number, since it uses less digits than its factorization.

125576121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6212.

The product of its digits is 4200, while the sum is 30.

The square root of 125576121 is about 11206.0751826855. The cubic root of 125576121 is about 500.7669842022.

The spelling of 125576121 in words is "one hundred twenty-five million, five hundred seventy-six thousand, one hundred twenty-one".