131844730 has 16 divisors (see below), whose sum is σ = 245504520. Its totient is φ = 50919232.

The previous prime is 131844719. The next prime is 131844731. The reversal of 131844730 is 37448131.

It can be written as a sum of positive squares in 4 ways, for example, as 130850721 + 994009 = 11439^2 + 997^2 .

It is a junction number, because it is equal to n+sod(n) for n = 131844692 and 131844701.

It is not an unprimeable number, because it can be changed into a prime (131844731) 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, 227029 + ... + 227608.

Almost surely, 2^131844730 is an apocalyptic number.

131844730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131844730 is a deficient number, since it is larger than the sum of its proper divisors (113659790).

131844730 is a wasteful number, since it uses less digits than its factorization.

131844730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454673.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 131844730 is about 11482.3660453758. The cubic root of 131844730 is about 508.9646173569.

The spelling of 131844730 in words is "one hundred thirty-one million, eight hundred forty-four thousand, seven hundred thirty".