131089306 has 16 divisors (see below), whose sum is σ = 198628200. Its totient is φ = 64883200.

The previous prime is 131089271. The next prime is 131089333. The reversal of 131089306 is 603980131.

It can be written as a sum of positive squares in 4 ways, for example, as 113103225 + 17986081 = 10635^2 + 4241^2 .

It is a super-2 number, since 2×131089306² = 34368812295123272, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 118950 + ... + 120046.

Almost surely, 2^131089306 is an apocalyptic number.

131089306 is a deficient number, since it is larger than the sum of its proper divisors (67538894).

131089306 is a wasteful number, since it uses less digits than its factorization.

131089306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1649.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 131089306 is about 11449.4238282981. The cubic root of 131089306 is about 507.9906920608.

The spelling of 131089306 in words is "one hundred thirty-one million, eighty-nine thousand, three hundred six".