125926121 has 2 divisors, whose sum is σ = 125926122. Its totient is φ = 125926120.

The previous prime is 125926117. The next prime is 125926147. The reversal of 125926121 is 121629521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82101721 + 43824400 = 9061^2 + 6620^2 .

It is a cyclic number.

It is not a de Polignac number, because 125926121 - 2² = 125926117 is a prime.

It is not a weakly prime, because it can be changed into another prime (125926111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62963060 + 62963061.

It is an arithmetic number, because the mean of its divisors is an integer number (62963061).

Almost surely, 2^125926121 is an apocalyptic number.

It is an amenable number.

125926121 is a deficient number, since it is larger than the sum of its proper divisors (1).

125926121 is an equidigital number, since it uses as much as digits as its factorization.

125926121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 29.

The square root of 125926121 is about 11221.6808455775. The cubic root of 125926121 is about 501.2317908904.

The spelling of 125926121 in words is "one hundred twenty-five million, nine hundred twenty-six thousand, one hundred twenty-one".