102425977 has 2 divisors, whose sum is σ = 102425978. Its totient is φ = 102425976.

The previous prime is 102425971. The next prime is 102425989. The reversal of 102425977 is 779524201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96255721 + 6170256 = 9811^2 + 2484^2 .

It is a cyclic number.

It is not a de Polignac number, because 102425977 - 2⁷ = 102425849 is a prime.

It is not a weakly prime, because it can be changed into another prime (102425971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51212988 + 51212989.

It is an arithmetic number, because the mean of its divisors is an integer number (51212989).

Almost surely, 2^102425977 is an apocalyptic number.

It is an amenable number.

102425977 is a deficient number, since it is larger than the sum of its proper divisors (1).

102425977 is an equidigital number, since it uses as much as digits as its factorization.

102425977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 102425977 is about 10120.5719700025. The cubic root of 102425977 is about 467.8823958155.

The spelling of 102425977 in words is "one hundred two million, four hundred twenty-five thousand, nine hundred seventy-seven".