131545255 has 4 divisors (see below), whose sum is σ = 157854312. Its totient is φ = 105236200.

The previous prime is 131545241. The next prime is 131545259. The reversal of 131545255 is 552545131.

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

It is not a de Polignac number, because 131545255 - 2⁵ = 131545223 is a prime.

It is a super-2 number, since 2×131545255² = 34608308226030050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131545259) 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, 13154521 + ... + 13154530.

It is an arithmetic number, because the mean of its divisors is an integer number (39463578).

Almost surely, 2^131545255 is an apocalyptic number.

131545255 is a deficient number, since it is larger than the sum of its proper divisors (26309057).

131545255 is an equidigital number, since it uses as much as digits as its factorization.

131545255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26309056.

The product of its digits is 15000, while the sum is 31.

The square root of 131545255 is about 11469.3179832107. The cubic root of 131545255 is about 508.5789674346.

The spelling of 131545255 in words is "one hundred thirty-one million, five hundred forty-five thousand, two hundred fifty-five".