130812042 has 16 divisors (see below), whose sum is σ = 277013952. Its totient is φ = 41039040.

The previous prime is 130812041. The next prime is 130812091. The reversal of 130812042 is 240218031.

It is a super-2 number, since 2×130812042² = 34223580664419528, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (130812041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 641134 + ... + 641337.

It is an arithmetic number, because the mean of its divisors is an integer number (17313372).

Almost surely, 2^130812042 is an apocalyptic number.

130812042 is an abundant number, since it is smaller than the sum of its proper divisors (146201910).

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

130812042 is a wasteful number, since it uses less digits than its factorization.

130812042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282493.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 130812042 is about 11437.3092115235. The cubic root of 130812042 is about 507.6322927540.

The spelling of 130812042 in words is "one hundred thirty million, eight hundred twelve thousand, forty-two".