13131801 has 20 divisors (see below), whose sum is σ = 19731712. Its totient is φ = 8703288.

The previous prime is 13131791. The next prime is 13131851. The reversal of 13131801 is 10813131.

It is a happy number.

It is not a de Polignac number, because 13131801 - 2⁶ = 13131737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13131851) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 17700 + ... + 18426.

Almost surely, 2^13131801 is an apocalyptic number.

It is an amenable number.

13131801 is a deficient number, since it is larger than the sum of its proper divisors (6599911).

13131801 is an equidigital number, since it uses as much as digits as its factorization.

13131801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962 (or 953 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 13131801 is about 3623.7826921602. The cubic root of 13131801 is about 235.9254348844.

Adding to 13131801 its reverse (10813131), we get a palindrome (23944932).

The spelling of 13131801 in words is "thirteen million, one hundred thirty-one thousand, eight hundred one".