131665027 has 12 divisors (see below), whose sum is σ = 144593424. Its totient is φ = 119814240.

The previous prime is 131665021. The next prime is 131665057. The reversal of 131665027 is 720566131.

It is not a de Polignac number, because 131665027 - 2³ = 131665019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131665027.

It is not an unprimeable number, because it can be changed into a prime (131665021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6513 + ... + 17485.

It is an arithmetic number, because the mean of its divisors is an integer number (12049452).

Almost surely, 2^131665027 is an apocalyptic number.

131665027 is a deficient number, since it is larger than the sum of its proper divisors (12928397).

131665027 is a wasteful number, since it uses less digits than its factorization.

131665027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11070 (or 11057 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 131665027 is about 11474.5382042155. The cubic root of 131665027 is about 508.7332743869.

The spelling of 131665027 in words is "one hundred thirty-one million, six hundred sixty-five thousand, twenty-seven".