102490843 has 32 divisors (see below), whose sum is σ = 132572160. Its totient is φ = 77051520.

The previous prime is 102490819. The next prime is 102490859. The reversal of 102490843 is 348094201.

It is not a de Polignac number, because 102490843 - 2⁵ = 102490811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102490813) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 187096 + ... + 187642.

It is an arithmetic number, because the mean of its divisors is an integer number (4142880).

Almost surely, 2^102490843 is an apocalyptic number.

102490843 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

102490843 is a deficient number, since it is larger than the sum of its proper divisors (30081317).

102490843 is a wasteful number, since it uses less digits than its factorization.

102490843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 102490843 is about 10123.7761235618. The cubic root of 102490843 is about 467.9811443812.

The spelling of 102490843 in words is "one hundred two million, four hundred ninety thousand, eight hundred forty-three".