13123413 has 6 divisors (see below), whose sum is σ = 18956054. Its totient is φ = 8748936.

The previous prime is 13123393. The next prime is 13123423. The reversal of 13123413 is 31432131.

It can be written as a sum of positive squares in only one way, i.e., 13089924 + 33489 = 3618^2 + 183^2 .

It is not a de Polignac number, because 13123413 - 2⁵ = 13123381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13123423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 729070 + ... + 729087.

Almost surely, 2^13123413 is an apocalyptic number.

It is an amenable number.

13123413 is a deficient number, since it is larger than the sum of its proper divisors (5832641).

13123413 is a wasteful number, since it uses less digits than its factorization.

13123413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1458163 (or 1458160 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 13123413 is about 3622.6251531176. The cubic root of 13123413 is about 235.8751913560.

Adding to 13123413 its reverse (31432131), we get a palindrome (44555544).

The spelling of 13123413 in words is "thirteen million, one hundred twenty-three thousand, four hundred thirteen".