13091112 has 32 divisors (see below), whose sum is σ = 36364800. Its totient is φ = 4363632.

The previous prime is 13091107. The next prime is 13091119. The reversal of 13091112 is 21119031.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (13091119) 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, 30088 + ... + 30519.

It is an arithmetic number, because the mean of its divisors is an integer number (1136400).

Almost surely, 2^13091112 is an apocalyptic number.

13091112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13091112 is an abundant number, since it is smaller than the sum of its proper divisors (23273688).

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

13091112 is a wasteful number, since it uses less digits than its factorization.

13091112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60622 (or 60612 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

The square root of 13091112 is about 3618.1641753796. The cubic root of 13091112 is about 235.6815104370.

It can be divided in two parts, 13091 and 112, that added together give a triangular number (13203 = T₁₆₂).

The spelling of 13091112 in words is "thirteen million, ninety-one thousand, one hundred twelve".