131030370 has 24 divisors (see below), whose sum is σ = 340679196. Its totient is φ = 34941408.

The previous prime is 131030329. The next prime is 131030387. The reversal of 131030370 is 73030131.

It can be written as a sum of positive squares in 2 ways, for example, as 108930969 + 22099401 = 10437^2 + 4701^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

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 11 ways as a sum of consecutive naturals, for example, 727857 + ... + 728036.

Almost surely, 2^131030370 is an apocalyptic number.

131030370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131030370 is an abundant number, since it is smaller than the sum of its proper divisors (209648826).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131030370 is a wasteful number, since it uses less digits than its factorization.

131030370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455906 (or 1455903 counting only the distinct ones).

The product of its (nonzero) digits is 189, while the sum is 18.

The square root of 131030370 is about 11446.8497849845. The cubic root of 131030370 is about 507.9145520405.

The spelling of 131030370 in words is "one hundred thirty-one million, thirty thousand, three hundred seventy".