15902 has 4 divisors (see below), whose sum is σ = 23856. Its totient is φ = 7950.

The previous prime is 15901. The next prime is 15907. The reversal of 15902 is 20951.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3974 + ... + 3977.

It is an arithmetic number, because the mean of its divisors is an integer number (5964).

2¹⁵⁹⁰² is an apocalyptic number.

15902 is a deficient number, since it is larger than the sum of its proper divisors (7954).

15902 is an equidigital number, since it uses as much as digits as its factorization.

15902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7953.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 15902 is about 126.1031323957. The cubic root of 15902 is about 25.1468688256.

It can be divided in two parts, 15 and 902, that multiplied together give a triangular number (13530 = T₁₆₄).

The spelling of 15902 in words is "fifteen thousand, nine hundred two".