125634101 has 2 divisors, whose sum is σ = 125634102. Its totient is φ = 125634100.

The previous prime is 125634083. The next prime is 125634133. The reversal of 125634101 is 101436521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86007076 + 39627025 = 9274^2 + 6295^2 .

It is a cyclic number.

It is not a de Polignac number, because 125634101 - 2⁶ = 125634037 is a prime.

It is a Sophie Germain prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125634151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62817050 + 62817051.

It is an arithmetic number, because the mean of its divisors is an integer number (62817051).

Almost surely, 2^125634101 is an apocalyptic number.

It is an amenable number.

125634101 is a deficient number, since it is larger than the sum of its proper divisors (1).

125634101 is an equidigital number, since it uses as much as digits as its factorization.

125634101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 125634101 is about 11208.6618737475. The cubic root of 125634101 is about 500.8440423832.

The spelling of 125634101 in words is "one hundred twenty-five million, six hundred thirty-four thousand, one hundred one".