131764730 has 8 divisors (see below), whose sum is σ = 237176532. Its totient is φ = 52705888.

The previous prime is 131764729. The next prime is 131764747. The reversal of 131764730 is 37467131.

It can be written as a sum of positive squares in 2 ways, for example, as 128074489 + 3690241 = 11317^2 + 1921^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6588227 + ... + 6588246.

Almost surely, 2^131764730 is an apocalyptic number.

131764730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131764730 is a deficient number, since it is larger than the sum of its proper divisors (105411802).

131764730 is a wasteful number, since it uses less digits than its factorization.

131764730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13176480.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 131764730 is about 11478.8819141936. The cubic root of 131764730 is about 508.8616543045.

The spelling of 131764730 in words is "one hundred thirty-one million, seven hundred sixty-four thousand, seven hundred thirty".