131340770 has 64 divisors (see below), whose sum is σ = 266499072. Its totient is φ = 46200000.

The previous prime is 131340763. The next prime is 131340773. The reversal of 131340770 is 77043131.

131340770 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131340773) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 523145 + ... + 523395.

It is an arithmetic number, because the mean of its divisors is an integer number (4164048).

Almost surely, 2^131340770 is an apocalyptic number.

131340770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131340770 is an abundant number, since it is smaller than the sum of its proper divisors (135158302).

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

131340770 is a wasteful number, since it uses less digits than its factorization.

131340770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407.

The product of its (nonzero) digits is 1764, while the sum is 26.

The square root of 131340770 is about 11460.4000802764. The cubic root of 131340770 is about 508.3153048042.

The spelling of 131340770 in words is "one hundred thirty-one million, three hundred forty thousand, seven hundred seventy".