131633493 has 16 divisors (see below), whose sum is σ = 182486976. Its totient is φ = 84332160.

The previous prime is 131633483. The next prime is 131633507. The reversal of 131633493 is 394336131.

It is not a de Polignac number, because 131633493 - 2⁸ = 131633237 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 (131633483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 255 + ... + 16227.

It is an arithmetic number, because the mean of its divisors is an integer number (11405436).

Almost surely, 2^131633493 is an apocalyptic number.

It is an amenable number.

131633493 is a deficient number, since it is larger than the sum of its proper divisors (50853483).

131633493 is a wasteful number, since it uses less digits than its factorization.

131633493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16084.

The product of its digits is 17496, while the sum is 33.

The square root of 131633493 is about 11473.1640361323. The cubic root of 131633493 is about 508.6926569799.

The spelling of 131633493 in words is "one hundred thirty-one million, six hundred thirty-three thousand, four hundred ninety-three".