131208730 has 32 divisors (see below), whose sum is σ = 240387840. Its totient is φ = 51554880.

The previous prime is 131208689. The next prime is 131208751. The reversal of 131208730 is 37802131.

It is a junction number, because it is equal to n+sod(n) for n = 131208695 and 131208704.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 242260 + ... + 242800.

It is an arithmetic number, because the mean of its divisors is an integer number (7512120).

Almost surely, 2^131208730 is an apocalyptic number.

131208730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131208730 is a deficient number, since it is larger than the sum of its proper divisors (109179110).

131208730 is a wasteful number, since it uses less digits than its factorization.

131208730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 131208730 is about 11454.6379253122. The cubic root of 131208730 is about 508.1449072011.

The spelling of 131208730 in words is "one hundred thirty-one million, two hundred eight thousand, seven hundred thirty".