13031401 has 4 divisors (see below), whose sum is σ = 13797972. Its totient is φ = 12264832.

The previous prime is 13031393. The next prime is 13031407. The reversal of 13031401 is 10413031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10413031 = 613 ⋅16987.

It can be written as a sum of positive squares in 2 ways, for example, as 7155625 + 5875776 = 2675^2 + 2424^2 .

It is a cyclic number.

It is not a de Polignac number, because 13031401 - 2³ = 13031393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13031407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 383260 + ... + 383293.

It is an arithmetic number, because the mean of its divisors is an integer number (3449493).

Almost surely, 2^13031401 is an apocalyptic number.

It is an amenable number.

13031401 is a deficient number, since it is larger than the sum of its proper divisors (766571).

13031401 is an equidigital number, since it uses as much as digits as its factorization.

13031401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766570.

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

The square root of 13031401 is about 3609.9031842973. The cubic root of 13031401 is about 235.3226351624.

Adding to 13031401 its reverse (10413031), we get a palindrome (23444432).

It can be divided in two parts, 1303 and 1401, that added together give a square (2704 = 52²).

The spelling of 13031401 in words is "thirteen million, thirty-one thousand, four hundred one".