131509927 has 2 divisors, whose sum is σ = 131509928. Its totient is φ = 131509926.

The previous prime is 131509921. The next prime is 131509949. The reversal of 131509927 is 729905131.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131509927 is a prime.

It is a super-3 number, since 3×131509927³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131509921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65754963 + 65754964.

It is an arithmetic number, because the mean of its divisors is an integer number (65754964).

Almost surely, 2^131509927 is an apocalyptic number.

131509927 is a deficient number, since it is larger than the sum of its proper divisors (1).

131509927 is an equidigital number, since it uses as much as digits as its factorization.

131509927 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17010, while the sum is 37.

The square root of 131509927 is about 11467.7777707802. Note that the first 5 decimals coincide. The cubic root of 131509927 is about 508.5334351032.

The spelling of 131509927 in words is "one hundred thirty-one million, five hundred nine thousand, nine hundred twenty-seven".