131848690 has 16 divisors (see below), whose sum is σ = 238316760. Its totient is φ = 52519680.

The previous prime is 131848631. The next prime is 131848693. The reversal of 131848690 is 96848131.

It can be written as a sum of positive squares in 4 ways, for example, as 112338801 + 19509889 = 10599^2 + 4417^2 .

It is a super-2 number, since 2×131848690² = 34768154109432200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131848693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24945 + ... + 29764.

Almost surely, 2^131848690 is an apocalyptic number.

131848690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131848690 is a deficient number, since it is larger than the sum of its proper divisors (106468070).

131848690 is a wasteful number, since it uses less digits than its factorization.

131848690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54957.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 131848690 is about 11482.5384824088. The cubic root of 131848690 is about 508.9697129460.

The spelling of 131848690 in words is "one hundred thirty-one million, eight hundred forty-eight thousand, six hundred ninety".