11391345 has 72 divisors (see below), whose sum is σ = 23914176. Its totient is φ = 4910976.

The previous prime is 11391337. The next prime is 11391349. The reversal of 11391345 is 54319311.

It is not a de Polignac number, because 11391345 - 2³ = 11391337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11391349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 264894 + ... + 264936.

Almost surely, 2^11391345 is an apocalyptic number.

11391345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11391345 is an abundant number, since it is smaller than the sum of its proper divisors (12522831).

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

11391345 is a wasteful number, since it uses less digits than its factorization.

11391345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119 (or 87 counting only the distinct ones).

The product of its digits is 1620, while the sum is 27.

The square root of 11391345 is about 3375.1066649811. The cubic root of 11391345 is about 225.0047406409.

The spelling of 11391345 in words is "eleven million, three hundred ninety-one thousand, three hundred forty-five".