130731822 has 24 divisors (see below), whose sum is σ = 305041464. Its totient is φ = 40225104.

The previous prime is 130731817. The next prime is 130731857. The reversal of 130731822 is 228137031.

It is a congruent 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, 279108 + ... + 279575.

It is an arithmetic number, because the mean of its divisors is an integer number (12710061).

Almost surely, 2^130731822 is an apocalyptic number.

130731822 is an abundant number, since it is smaller than the sum of its proper divisors (174309642).

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

130731822 is a wasteful number, since it uses less digits than its factorization.

130731822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558704 (or 558701 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 130731822 is about 11433.8017299584. The cubic root of 130731822 is about 507.5285036609.

Adding to 130731822 its reverse (228137031), we get a palindrome (358868853).

The spelling of 130731822 in words is "one hundred thirty million, seven hundred thirty-one thousand, eight hundred twenty-two".