13165890 has 32 divisors (see below), whose sum is σ = 32973696. Its totient is φ = 3358080.

The previous prime is 13165883. The next prime is 13165891. The reversal of 13165890 is 9856131.

It is a super-3 number, since 3×13165890³ (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (13165891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8851 + ... + 10230.

It is an arithmetic number, because the mean of its divisors is an integer number (1030428).

Almost surely, 2^13165890 is an apocalyptic number.

13165890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13165890 is an abundant number, since it is smaller than the sum of its proper divisors (19807806).

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

13165890 is a wasteful number, since it uses less digits than its factorization.

13165890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19114.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 13165890 is about 3628.4831541568. The cubic root of 13165890 is about 236.1294057130.

The spelling of 13165890 in words is "thirteen million, one hundred sixty-five thousand, eight hundred ninety".