102091650 has 24 divisors (see below), whose sum is σ = 253187664. Its totient is φ = 27224400.

The previous prime is 102091637. The next prime is 102091651. The reversal of 102091650 is 56190201.

It is a self number, because there is not a number n which added to its sum of digits gives 102091650.

It is not an unprimeable number, because it can be changed into a prime (102091651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 340156 + ... + 340455.

It is an arithmetic number, because the mean of its divisors is an integer number (10549486).

Almost surely, 2^102091650 is an apocalyptic number.

102091650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102091650 is an abundant number, since it is smaller than the sum of its proper divisors (151096014).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102091650 is a wasteful number, since it uses less digits than its factorization.

102091650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680626 (or 680621 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 102091650 is about 10104.0412706996. The cubic root of 102091650 is about 467.3727717689.

The spelling of 102091650 in words is "one hundred two million, ninety-one thousand, six hundred fifty".