131633242 has 16 divisors (see below), whose sum is σ = 216126792. Its totient is φ = 59757120.

The previous prime is 131633237. The next prime is 131633251. The reversal of 131633242 is 242336131.

131633242 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 62394201 + 69239041 = 7899^2 + 8321^2 .

It is an unprimeable number.

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, 39913 + ... + 43084.

Almost surely, 2^131633242 is an apocalyptic number.

131633242 is a deficient number, since it is larger than the sum of its proper divisors (84493550).

131633242 is a wasteful number, since it uses less digits than its factorization.

131633242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83073.

The product of its digits is 2592, while the sum is 25.

The square root of 131633242 is about 11473.1530975578. The cubic root of 131633242 is about 508.6923336530.

Adding to 131633242 its reverse (242336131), we get a palindrome (373969373).

The spelling of 131633242 in words is "one hundred thirty-one million, six hundred thirty-three thousand, two hundred forty-two".