102492985 has 16 divisors (see below), whose sum is σ = 141382656. Its totient is φ = 69870528.

The previous prime is 102492977. The next prime is 102493003. The reversal of 102492985 is 589294201.

It is not a de Polignac number, because 102492985 - 2³ = 102492977 is a prime.

It is a super-3 number, since 3×102492985³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2409 + ... + 14518.

It is an arithmetic number, because the mean of its divisors is an integer number (8836416).

Almost surely, 2^102492985 is an apocalyptic number.

It is an amenable number.

102492985 is a deficient number, since it is larger than the sum of its proper divisors (38889671).

102492985 is a wasteful number, since it uses less digits than its factorization.

102492985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17112.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 102492985 is about 10123.8819135745. The cubic root of 102492985 is about 467.9844045379.

The spelling of 102492985 in words is "one hundred two million, four hundred ninety-two thousand, nine hundred eighty-five".