102285831 has 16 divisors (see below), whose sum is σ = 139315680. Its totient is φ = 66739200.

The previous prime is 102285829. The next prime is 102285847. The reversal of 102285831 is 138582201.

It is not a de Polignac number, because 102285831 - 2¹ = 102285829 is a prime.

It is a super-2 number, since 2×102285831² = 20924782446721122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102285811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25071 + ... + 28863.

It is an arithmetic number, because the mean of its divisors is an integer number (8707230).

Almost surely, 2^102285831 is an apocalyptic number.

102285831 is a deficient number, since it is larger than the sum of its proper divisors (37029849).

102285831 is a wasteful number, since it uses less digits than its factorization.

102285831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3986.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 102285831 is about 10113.6457818138. The cubic root of 102285831 is about 467.6689025283.

The spelling of 102285831 in words is "one hundred two million, two hundred eighty-five thousand, eight hundred thirty-one".