13037021 has 8 divisors (see below), whose sum is σ = 14320320. Its totient is φ = 11813472.

The previous prime is 13037009. The next prime is 13037023. The reversal of 13037021 is 12073031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13037021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13037023) 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, 14480 + ... + 15353.

It is an arithmetic number, because the mean of its divisors is an integer number (1790040).

Almost surely, 2^13037021 is an apocalyptic number.

It is an amenable number.

13037021 is a deficient number, since it is larger than the sum of its proper divisors (1283299).

13037021 is a wasteful number, since it uses less digits than its factorization.

13037021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29875.

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 13037021 is about 3610.6815146174. The cubic root of 13037021 is about 235.3564591833.

The spelling of 13037021 in words is "thirteen million, thirty-seven thousand, twenty-one".