131257575 has 18 divisors (see below), whose sum is σ = 235097304. Its totient is φ = 70003920.

The previous prime is 131257559. The next prime is 131257579. The reversal of 131257575 is 575752131.

It is a happy number.

131257575 is a `hidden beast` number, since 1 + 3 + 12 + 575 + 75 = 666.

It is not a de Polignac number, because 131257575 - 2⁴ = 131257559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131257579) 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 17 ways as a sum of consecutive naturals, for example, 291459 + ... + 291908.

Almost surely, 2^131257575 is an apocalyptic number.

131257575 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131257575 is a deficient number, since it is larger than the sum of its proper divisors (103839729).

131257575 is a wasteful number, since it uses less digits than its factorization.

131257575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583383 (or 583375 counting only the distinct ones).

The product of its digits is 36750, while the sum is 36.

The square root of 131257575 is about 11456.7698327234. The cubic root of 131257575 is about 508.2079549843.

The spelling of 131257575 in words is "one hundred thirty-one million, two hundred fifty-seven thousand, five hundred seventy-five".