13400131 has 8 divisors (see below), whose sum is σ = 14236560. Its totient is φ = 12569088.

The previous prime is 13400129. The next prime is 13400141. The reversal of 13400131 is 13100431.

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

It is a cyclic number.

It is not a de Polignac number, because 13400131 - 2¹ = 13400129 is a prime.

It is a super-2 number, since 2×13400131² = 359127021634322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13400141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4560 + ... + 6898.

It is an arithmetic number, because the mean of its divisors is an integer number (1779570).

Almost surely, 2^13400131 is an apocalyptic number.

13400131 is a deficient number, since it is larger than the sum of its proper divisors (836429).

13400131 is a wasteful number, since it uses less digits than its factorization.

13400131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2693.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 13400131 is about 3660.6189367373. The cubic root of 13400131 is about 237.5215478141.

Adding to 13400131 its reverse (13100431), we get a palindrome (26500562).

It can be divided in two parts, 13400 and 131, that added together give a palindrome (13531).

The spelling of 13400131 in words is "thirteen million, four hundred thousand, one hundred thirty-one".