131952389 has 4 divisors (see below), whose sum is σ = 131975424. Its totient is φ = 131929356.

The previous prime is 131952383. The next prime is 131952421. The reversal of 131952389 is 983259131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 131952389 - 2²⁰ = 130903813 is a prime.

It is a super-2 number, since 2×131952389² = 34822865925614642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131952383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4514 + ... + 16860.

It is an arithmetic number, because the mean of its divisors is an integer number (32993856).

Almost surely, 2^131952389 is an apocalyptic number.

It is an amenable number.

131952389 is a deficient number, since it is larger than the sum of its proper divisors (23035).

131952389 is a wasteful number, since it uses less digits than its factorization.

131952389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23034.

The product of its digits is 58320, while the sum is 41.

The square root of 131952389 is about 11487.0531033856. The cubic root of 131952389 is about 509.1031128790.

The spelling of 131952389 in words is "one hundred thirty-one million, nine hundred fifty-two thousand, three hundred eighty-nine".