102091898 has 8 divisors (see below), whose sum is σ = 153443808. Its totient is φ = 50943964.

The previous prime is 102091867. The next prime is 102091903. The reversal of 102091898 is 898190201.

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, 49736 + ... + 51747.

It is an arithmetic number, because the mean of its divisors is an integer number (19180476).

Almost surely, 2^102091898 is an apocalyptic number.

102091898 is a deficient number, since it is larger than the sum of its proper divisors (51351910).

102091898 is a wasteful number, since it uses less digits than its factorization.

102091898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101988.

The product of its (nonzero) digits is 10368, while the sum is 38.

The square root of 102091898 is about 10104.0535430094. The cubic root of 102091898 is about 467.3731502143.

The spelling of 102091898 in words is "one hundred two million, ninety-one thousand, eight hundred ninety-eight".