16125961 has 2 divisors, whose sum is σ = 16125962. Its totient is φ = 16125960.

The previous prime is 16125953. The next prime is 16125971. The reversal of 16125961 is 16952161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11943936 + 4182025 = 3456^2 + 2045^2 .

It is a cyclic number.

It is not a de Polignac number, because 16125961 - 2³ = 16125953 is a prime.

It is not a weakly prime, because it can be changed into another prime (16125971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8062980 + 8062981.

It is an arithmetic number, because the mean of its divisors is an integer number (8062981).

Almost surely, 2^16125961 is an apocalyptic number.

It is an amenable number.

16125961 is a deficient number, since it is larger than the sum of its proper divisors (1).

16125961 is an equidigital number, since it uses as much as digits as its factorization.

16125961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 31.

The square root of 16125961 is about 4015.7142577629. The cubic root of 16125961 is about 252.6437360888.

The spelling of 16125961 in words is "sixteen million, one hundred twenty-five thousand, nine hundred sixty-one".