131333307 has 32 divisors (see below), whose sum is σ = 204288000. Its totient is φ = 73504800.

The previous prime is 131333303. The next prime is 131333317. The reversal of 131333307 is 703333131.

It is not a de Polignac number, because 131333307 - 2² = 131333303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131333303) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 262944 + ... + 263442.

It is an arithmetic number, because the mean of its divisors is an integer number (6384000).

Almost surely, 2^131333307 is an apocalyptic number.

131333307 is a deficient number, since it is larger than the sum of its proper divisors (72954693).

131333307 is a wasteful number, since it uses less digits than its factorization.

131333307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743.

The product of its (nonzero) digits is 1701, while the sum is 24.

The square root of 131333307 is about 11460.0744761978. The cubic root of 131333307 is about 508.3056768494.

Adding to 131333307 its reverse (703333131), we get a palindrome (834666438).

The spelling of 131333307 in words is "one hundred thirty-one million, three hundred thirty-three thousand, three hundred seven".