131695340 has 72 divisors (see below), whose sum is σ = 327135312. Its totient is φ = 44392320.

The previous prime is 131695339. The next prime is 131695349. The reversal of 131695340 is 43596131.

It is a junction number, because it is equal to n+sod(n) for n = 131695297 and 131695306.

It is not an unprimeable number, because it can be changed into a prime (131695349) 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, 58679 + ... + 60881.

It is an arithmetic number, because the mean of its divisors is an integer number (4543546).

Almost surely, 2^131695340 is an apocalyptic number.

131695340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131695340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163567656).

131695340 is an abundant number, since it is smaller than the sum of its proper divisors (195439972).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131695340 is a wasteful number, since it uses less digits than its factorization.

131695340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2287 (or 2278 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 131695340 is about 11475.8590092420. The cubic root of 131695340 is about 508.7723129703.

The spelling of 131695340 in words is "one hundred thirty-one million, six hundred ninety-five thousand, three hundred forty".