102490258 has 8 divisors (see below), whose sum is σ = 165561228. Its totient is φ = 47303184.

The previous prime is 102490249. The next prime is 102490291. The reversal of 102490258 is 852094201.

It can be written as a sum of positive squares in 2 ways, for example, as 102475129 + 15129 = 10123^2 + 123^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1970941 + ... + 1970992.

Almost surely, 2^102490258 is an apocalyptic number.

102490258 is a deficient number, since it is larger than the sum of its proper divisors (63070970).

102490258 is a wasteful number, since it uses less digits than its factorization.

102490258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3941948.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 102490258 is about 10123.7472311393. The cubic root of 102490258 is about 467.9802539944.

The spelling of 102490258 in words is "one hundred two million, four hundred ninety thousand, two hundred fifty-eight".