131900551 has 4 divisors (see below), whose sum is σ = 131925600. Its totient is φ = 131875504.

The previous prime is 131900543. The next prime is 131900579. The reversal of 131900551 is 155009131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131900551 - 2³ = 131900543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131900051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1231 + ... + 16288.

It is an arithmetic number, because the mean of its divisors is an integer number (32981400).

Almost surely, 2^131900551 is an apocalyptic number.

131900551 is a deficient number, since it is larger than the sum of its proper divisors (25049).

131900551 is an equidigital number, since it uses as much as digits as its factorization.

131900551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25048.

The product of its (nonzero) digits is 675, while the sum is 25.

The square root of 131900551 is about 11484.7965153937. The cubic root of 131900551 is about 509.0364364461.

Adding to 131900551 its reverse (155009131), we get a palindrome (286909682).

The spelling of 131900551 in words is "one hundred thirty-one million, nine hundred thousand, five hundred fifty-one".