102755977 has 2 divisors, whose sum is σ = 102755978. Its totient is φ = 102755976.

The previous prime is 102755969. The next prime is 102755981. The reversal of 102755977 is 779557201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96510976 + 6245001 = 9824^2 + 2499^2 .

It is a cyclic number.

It is not a de Polignac number, because 102755977 - 2³ = 102755969 is a prime.

It is not a weakly prime, because it can be changed into another prime (102755987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51377988 + 51377989.

It is an arithmetic number, because the mean of its divisors is an integer number (51377989).

Almost surely, 2^102755977 is an apocalyptic number.

It is an amenable number.

102755977 is a deficient number, since it is larger than the sum of its proper divisors (1).

102755977 is an equidigital number, since it uses as much as digits as its factorization.

102755977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 154350, while the sum is 43.

The square root of 102755977 is about 10136.8622857371. The cubic root of 102755977 is about 468.3843377144.

The spelling of 102755977 in words is "one hundred two million, seven hundred fifty-five thousand, nine hundred seventy-seven".