15900102 has 12 divisors (see below), whose sum is σ = 34450260. Its totient is φ = 5300028.

The previous prime is 15900043. The next prime is 15900103. The reversal of 15900102 is 20100951.

It is a super-2 number, since 2×15900102² = 505626487220808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 883339 = 15900102 / (1 + 5 + 9 + 0 + 0 + 1 + 0 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15900103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 441652 + ... + 441687.

It is an arithmetic number, because the mean of its divisors is an integer number (2870855).

Almost surely, 2^15900102 is an apocalyptic number.

15900102 is an abundant number, since it is smaller than the sum of its proper divisors (18550158).

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

15900102 is a wasteful number, since it uses less digits than its factorization.

15900102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883347 (or 883344 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 15900102 is about 3987.4931974864. The cubic root of 15900102 is about 251.4586830881.

The spelling of 15900102 in words is "fifteen million, nine hundred thousand, one hundred two".