131982705 has 24 divisors (see below), whose sum is σ = 232652160. Its totient is φ = 69196320.

The previous prime is 131982689. The next prime is 131982709. The reversal of 131982705 is 507289131.

It is not a de Polignac number, because 131982705 - 2⁴ = 131982689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131982705.

It is not an unprimeable number, because it can be changed into a prime (131982709) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22201 + ... + 27510.

It is an arithmetic number, because the mean of its divisors is an integer number (9693840).

Almost surely, 2^131982705 is an apocalyptic number.

131982705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131982705 is a deficient number, since it is larger than the sum of its proper divisors (100669455).

131982705 is a wasteful number, since it uses less digits than its factorization.

131982705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49781 (or 49778 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 131982705 is about 11488.3726001553. The cubic root of 131982705 is about 509.1420986280.

The spelling of 131982705 in words is "one hundred thirty-one million, nine hundred eighty-two thousand, seven hundred five".