102495457 has 2 divisors, whose sum is σ = 102495458. Its totient is φ = 102495456.

The previous prime is 102495427. The next prime is 102495467. The reversal of 102495457 is 754594201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102495376 + 81 = 10124^2 + 9^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102495457 is a prime.

It is not a weakly prime, because it can be changed into another prime (102495427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51247728 + 51247729.

It is an arithmetic number, because the mean of its divisors is an integer number (51247729).

Almost surely, 2^102495457 is an apocalyptic number.

It is an amenable number.

102495457 is a deficient number, since it is larger than the sum of its proper divisors (1).

102495457 is an equidigital number, since it uses as much as digits as its factorization.

102495457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 102495457 is about 10124.0040003943. The cubic root of 102495457 is about 467.9881669032.

The spelling of 102495457 in words is "one hundred two million, four hundred ninety-five thousand, four hundred fifty-seven".