131319770 has 16 divisors (see below), whose sum is σ = 237699360. Its totient is φ = 52233744.

The previous prime is 131319731. The next prime is 131319779. The reversal of 131319770 is 77913131.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131319779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34892 + ... + 38471.

It is an arithmetic number, because the mean of its divisors is an integer number (14856210).

Almost surely, 2^131319770 is an apocalyptic number.

131319770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131319770 is a deficient number, since it is larger than the sum of its proper divisors (106379590).

131319770 is a wasteful number, since it uses less digits than its factorization.

131319770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73549.

The product of its (nonzero) digits is 3969, while the sum is 32.

The square root of 131319770 is about 11459.4838452698. The cubic root of 131319770 is about 508.2882119465.

The spelling of 131319770 in words is "one hundred thirty-one million, three hundred nineteen thousand, seven hundred seventy".