13431733 has 6 divisors (see below), whose sum is σ = 15624726. Its totient is φ = 11512872.

The previous prime is 13431731. The next prime is 13431739. The reversal of 13431733 is 33713431.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12794929 + 636804 = 3577^2 + 798^2 .

It is not a de Polignac number, because 13431733 - 2¹ = 13431731 is a prime.

It is a super-2 number, since 2×13431733² = 360822902766578, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13431698 and 13431707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13431731) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 137010 + ... + 137107.

It is an arithmetic number, because the mean of its divisors is an integer number (2604121).

Almost surely, 2^13431733 is an apocalyptic number.

It is an amenable number.

13431733 is a deficient number, since it is larger than the sum of its proper divisors (2192993).

13431733 is an equidigital number, since it uses as much as digits as its factorization.

13431733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274131 (or 274124 counting only the distinct ones).

The product of its digits is 2268, while the sum is 25.

The square root of 13431733 is about 3664.9328779665. The cubic root of 13431733 is about 237.7081196965.

The spelling of 13431733 in words is "thirteen million, four hundred thirty-one thousand, seven hundred thirty-three".