131504025 has 24 divisors (see below), whose sum is σ = 220407520. Its totient is φ = 69171840.

The previous prime is 131504017. The next prime is 131504029. The reversal of 131504025 is 520405131.

It is not a de Polignac number, because 131504025 - 2³ = 131504017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131503992 and 131504010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131504029) 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 23 ways as a sum of consecutive naturals, for example, 6535 + ... + 17484.

Almost surely, 2^131504025 is an apocalyptic number.

131504025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131504025 is a deficient number, since it is larger than the sum of its proper divisors (88903495).

131504025 is a wasteful number, since it uses less digits than its factorization.

131504025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24105 (or 24100 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 131504025 is about 11467.5204381767. The cubic root of 131504025 is about 508.5258275426.

Adding to 131504025 its reverse (520405131), we get a palindrome (651909156).

The spelling of 131504025 in words is "one hundred thirty-one million, five hundred four thousand, twenty-five".