131533315 has 8 divisors (see below), whose sum is σ = 157908240. Its totient is φ = 105181152.

The previous prime is 131533313. The next prime is 131533319. The reversal of 131533315 is 513335131.

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 131533315 - 2¹ = 131533313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131533315.

It is not an unprimeable number, because it can be changed into a prime (131533313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12072 + ... + 20218.

It is an arithmetic number, because the mean of its divisors is an integer number (19738530).

Almost surely, 2^131533315 is an apocalyptic number.

131533315 is a deficient number, since it is larger than the sum of its proper divisors (26374925).

131533315 is an equidigital number, since it uses as much as digits as its factorization.

131533315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11381.

The product of its digits is 2025, while the sum is 25.

The square root of 131533315 is about 11468.7974522179. The cubic root of 131533315 is about 508.5635795323.

Adding to 131533315 its reverse (513335131), we get a palindrome (644868446).

The spelling of 131533315 in words is "one hundred thirty-one million, five hundred thirty-three thousand, three hundred fifteen".