131432555 has 8 divisors (see below), whose sum is σ = 157810032. Its totient is φ = 105085408.

The previous prime is 131432513. The next prime is 131432599. The reversal of 131432555 is 555234131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131432555 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3404 + ... + 16566.

It is an arithmetic number, because the mean of its divisors is an integer number (19726254).

Almost surely, 2^131432555 is an apocalyptic number.

131432555 is a deficient number, since it is larger than the sum of its proper divisors (26377477).

131432555 is a wasteful number, since it uses less digits than its factorization.

131432555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15165.

The product of its digits is 9000, while the sum is 29.

The square root of 131432555 is about 11464.4038222666. The cubic root of 131432555 is about 508.4336860611.

Adding to 131432555 its reverse (555234131), we get a palindrome (686666686).

The spelling of 131432555 in words is "one hundred thirty-one million, four hundred thirty-two thousand, five hundred fifty-five".