131315133 has 8 divisors (see below), whose sum is σ = 178812288. Its totient is φ = 85680704.

The previous prime is 131315117. The next prime is 131315159. The reversal of 131315133 is 331513131.

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 131315133 - 2⁴ = 131315117 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131315033) 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, 465516 + ... + 465797.

It is an arithmetic number, because the mean of its divisors is an integer number (22351536).

Almost surely, 2^131315133 is an apocalyptic number.

It is an amenable number.

131315133 is a deficient number, since it is larger than the sum of its proper divisors (47497155).

131315133 is an equidigital number, since it uses as much as digits as its factorization.

131315133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931363.

The product of its digits is 405, while the sum is 21.

The square root of 131315133 is about 11459.2815219803. The cubic root of 131315133 is about 508.2822291962.

Adding to 131315133 its reverse (331513131), we get a palindrome (462828264).

The spelling of 131315133 in words is "one hundred thirty-one million, three hundred fifteen thousand, one hundred thirty-three".