13312029 has 16 divisors (see below), whose sum is σ = 18217472. Its totient is φ = 8643888.

The previous prime is 13312021. The next prime is 13312031. The reversal of 13312029 is 92021331.

It is a happy number.

It is not a de Polignac number, because 13312029 - 2³ = 13312021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13311996 and 13312014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13312021) 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, 20382 + ... + 21024.

It is an arithmetic number, because the mean of its divisors is an integer number (1138592).

Almost surely, 2^13312029 is an apocalyptic number.

It is an amenable number.

13312029 is a deficient number, since it is larger than the sum of its proper divisors (4905443).

13312029 is a wasteful number, since it uses less digits than its factorization.

13312029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 13312029 is about 3648.5653344842. The cubic root of 13312029 is about 236.9998575726. Note that the first 3 decimals are identical.

The spelling of 13312029 in words is "thirteen million, three hundred twelve thousand, twenty-nine".