102490957 has 2 divisors, whose sum is σ = 102490958. Its totient is φ = 102490956.

The previous prime is 102490951. The next prime is 102490963. The reversal of 102490957 is 759094201.

It is a balanced prime because it is at equal distance from previous prime (102490951) and next prime (102490963).

It can be written as a sum of positive squares in only one way, i.e., 60746436 + 41744521 = 7794^2 + 6461^2 .

It is an emirp because it is prime and its reverse (759094201) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102490957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102490951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51245478 + 51245479.

It is an arithmetic number, because the mean of its divisors is an integer number (51245479).

Almost surely, 2^102490957 is an apocalyptic number.

It is an amenable number.

102490957 is a deficient number, since it is larger than the sum of its proper divisors (1).

102490957 is an equidigital number, since it uses as much as digits as its factorization.

102490957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 102490957 is about 10123.7817538704. The cubic root of 102490957 is about 467.9813178921.

The spelling of 102490957 in words is "one hundred two million, four hundred ninety thousand, nine hundred fifty-seven".