131245233 has 8 divisors (see below), whose sum is σ = 199992768. Its totient is φ = 74997264.

The previous prime is 131245207. The next prime is 131245241. The reversal of 131245233 is 332542131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131245233 - 2⁵ = 131245201 is a prime.

It is a super-2 number, since 2×131245233² = 34450622370448578, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131245273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3124866 + ... + 3124907.

It is an arithmetic number, because the mean of its divisors is an integer number (24999096).

Almost surely, 2^131245233 is an apocalyptic number.

It is an amenable number.

131245233 is a deficient number, since it is larger than the sum of its proper divisors (68747535).

131245233 is an equidigital number, since it uses as much as digits as its factorization.

131245233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6249783.

The product of its digits is 2160, while the sum is 24.

The square root of 131245233 is about 11456.2311865639. The cubic root of 131245233 is about 508.1920257470.

Adding to 131245233 its reverse (332542131), we get a palindrome (463787364).

The spelling of 131245233 in words is "one hundred thirty-one million, two hundred forty-five thousand, two hundred thirty-three".