131144601 has 16 divisors (see below), whose sum is σ = 206286848. Its totient is φ = 72522000.

The previous prime is 131144591. The next prime is 131144603. The reversal of 131144601 is 106441131.

It is not a de Polignac number, because 131144601 - 2⁵ = 131144569 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131144603) 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, 100075 + ... + 101376.

It is an arithmetic number, because the mean of its divisors is an integer number (12892928).

Almost surely, 2^131144601 is an apocalyptic number.

It is an amenable number.

131144601 is a deficient number, since it is larger than the sum of its proper divisors (75142247).

131144601 is a wasteful number, since it uses less digits than its factorization.

131144601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201492.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 131144601 is about 11451.8383240421. The cubic root of 131144601 is about 508.0621074891.

Adding to 131144601 its reverse (106441131), we get a palindrome (237585732).

The spelling of 131144601 in words is "one hundred thirty-one million, one hundred forty-four thousand, six hundred one".