125306081 has 2 divisors, whose sum is σ = 125306082. Its totient is φ = 125306080.

The previous prime is 125306059. The next prime is 125306101. The reversal of 125306081 is 180603521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125238481 + 67600 = 11191^2 + 260^2 .

It is a cyclic number.

It is not a de Polignac number, because 125306081 - 2²² = 121111777 is a prime.

It is a super-2 number, since 2×125306081² = 31403227871157122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 125306081.

It is not a weakly prime, because it can be changed into another prime (125308081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62653040 + 62653041.

It is an arithmetic number, because the mean of its divisors is an integer number (62653041).

Almost surely, 2^125306081 is an apocalyptic number.

It is an amenable number.

125306081 is a deficient number, since it is larger than the sum of its proper divisors (1).

125306081 is an equidigital number, since it uses as much as digits as its factorization.

125306081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 125306081 is about 11194.0198767020. The cubic root of 125306081 is about 500.4077753481.

The spelling of 125306081 in words is "one hundred twenty-five million, three hundred six thousand, eighty-one".