131415165 has 24 divisors (see below), whose sum is σ = 260327808. Its totient is φ = 60075360.

The previous prime is 131415121. The next prime is 131415199. The reversal of 131415165 is 561514131.

131415165 is a `hidden beast` number, since 1 + 3 + 141 + 516 + 5 = 666.

It is not a de Polignac number, because 131415165 - 2¹² = 131411069 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 208281 + ... + 208910.

It is an arithmetic number, because the mean of its divisors is an integer number (10846992).

Almost surely, 2^131415165 is an apocalyptic number.

131415165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131415165 is a deficient number, since it is larger than the sum of its proper divisors (128912643).

131415165 is a wasteful number, since it uses less digits than its factorization.

131415165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417209 (or 417206 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

The square root of 131415165 is about 11463.6453626235. The cubic root of 131415165 is about 508.4112612472.

Adding to 131415165 its reverse (561514131), we get a palindrome (692929296).

The spelling of 131415165 in words is "one hundred thirty-one million, four hundred fifteen thousand, one hundred sixty-five".