125604949 has 2 divisors, whose sum is σ = 125604950. Its totient is φ = 125604948.

The previous prime is 125604943. The next prime is 125604961. The reversal of 125604949 is 949406521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125596849 + 8100 = 11207^2 + 90^2 .

It is a cyclic number.

It is not a de Polignac number, because 125604949 - 2¹⁷ = 125473877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125604943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62802474 + 62802475.

It is an arithmetic number, because the mean of its divisors is an integer number (62802475).

Almost surely, 2^125604949 is an apocalyptic number.

It is an amenable number.

125604949 is a deficient number, since it is larger than the sum of its proper divisors (1).

125604949 is an equidigital number, since it uses as much as digits as its factorization.

125604949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 125604949 is about 11207.3613754532. The cubic root of 125604949 is about 500.8053009511.

The spelling of 125604949 in words is "one hundred twenty-five million, six hundred four thousand, nine hundred forty-nine".