13591090 has 16 divisors (see below), whose sum is σ = 25061400. Its totient is φ = 5303680.

The previous prime is 13591079. The next prime is 13591117. The reversal of 13591090 is 9019531.

13591090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 11716929 + 1874161 = 3423^2 + 1369^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16165 + ... + 16984.

Almost surely, 2^13591090 is an apocalyptic number.

13591090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13591090 is a deficient number, since it is larger than the sum of its proper divisors (11470310).

13591090 is a wasteful number, since it uses less digits than its factorization.

13591090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33197.

The product of its (nonzero) digits is 1215, while the sum is 28.

The square root of 13591090 is about 3686.6095535058. The cubic root of 13591090 is about 238.6444998641.

The spelling of 13591090 in words is "thirteen million, five hundred ninety-one thousand, ninety".