13130733 has 16 divisors (see below), whose sum is σ = 21828096. Its totient is φ = 6821040.

The previous prime is 13130717. The next prime is 13130743. The reversal of 13130733 is 33703131.

It is not a de Polignac number, because 13130733 - 2⁴ = 13130717 is a prime.

It is a super-2 number, since 2×13130733² = 344832298234578, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13130743) 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, 28191 + ... + 28652.

It is an arithmetic number, because the mean of its divisors is an integer number (1364256).

Almost surely, 2^13130733 is an apocalyptic number.

It is an amenable number.

13130733 is a deficient number, since it is larger than the sum of its proper divisors (8697363).

13130733 is a wasteful number, since it uses less digits than its factorization.

13130733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56864.

The product of its (nonzero) digits is 567, while the sum is 21.

The square root of 13130733 is about 3623.6353293343. The cubic root of 13130733 is about 235.9190388286.

Adding to 13130733 its reverse (33703131), we get a palindrome (46833864).

The spelling of 13130733 in words is "thirteen million, one hundred thirty thousand, seven hundred thirty-three".