131331001 has 8 divisors (see below), whose sum is σ = 139168800. Its totient is φ = 123505728.

The previous prime is 131330993. The next prime is 131331017. The reversal of 131331001 is 100133131.

It is a happy number.

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 131331001 - 2³ = 131330993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131331061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26610 + ... + 31156.

It is an arithmetic number, because the mean of its divisors is an integer number (17396100).

Almost surely, 2^131331001 is an apocalyptic number.

It is an amenable number.

131331001 is a deficient number, since it is larger than the sum of its proper divisors (7837799).

131331001 is a wasteful number, since it uses less digits than its factorization.

131331001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6263.

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 131331001 is about 11459.9738655897. The cubic root of 131331001 is about 508.3027018241.

Adding to 131331001 its reverse (100133131), we get a palindrome (231464132).

The spelling of 131331001 in words is "one hundred thirty-one million, three hundred thirty-one thousand, one".