109902 has 16 divisors (see below), whose sum is σ = 236880. Its totient is φ = 33792.

The previous prime is 109897. The next prime is 109903. The reversal of 109902 is 209901.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 627 + ... + 782.

It is an arithmetic number, because the mean of its divisors is an integer number (14805).

2¹⁰⁹⁹⁰² is an apocalyptic number.

109902 is an abundant number, since it is smaller than the sum of its proper divisors (126978).

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

109902 is a wasteful number, since it uses less digits than its factorization.

109902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427.

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 109902 is about 331.5147055562. The cubic root of 109902 is about 47.8999652779.

Subtracting 109902 from its reverse (209901), we obtain a palindrome (99999).

The spelling of 109902 in words is "one hundred nine thousand, nine hundred two".