13236945 has 16 divisors (see below), whose sum is σ = 21539520. Its totient is φ = 6939584.

The previous prime is 13236941. The next prime is 13236947. The reversal of 13236945 is 54963231.

It is a cyclic number.

It is not a de Polignac number, because 13236945 - 2² = 13236941 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13236941) 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, 6594 + ... + 8363.

It is an arithmetic number, because the mean of its divisors is an integer number (1346220).

Almost surely, 2^13236945 is an apocalyptic number.

13236945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13236945 is a deficient number, since it is larger than the sum of its proper divisors (8302575).

13236945 is a wasteful number, since it uses less digits than its factorization.

13236945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15024.

The product of its digits is 19440, while the sum is 33.

The square root of 13236945 is about 3638.2612605474. The cubic root of 13236945 is about 236.5534327940.

The spelling of 13236945 in words is "thirteen million, two hundred thirty-six thousand, nine hundred forty-five".