130243770 has 24 divisors (see below), whose sum is σ = 338634036. Its totient is φ = 34731648.

The previous prime is 130243769. The next prime is 130243777. The reversal of 130243770 is 77342031.

It can be written as a sum of positive squares in 2 ways, for example, as 129481641 + 762129 = 11379^2 + 873^2 .

It is not an unprimeable number, because it can be changed into a prime (130243777) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 723487 + ... + 723666.

Almost surely, 2^130243770 is an apocalyptic number.

130243770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

130243770 is an abundant number, since it is smaller than the sum of its proper divisors (208390266).

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

130243770 is a wasteful number, since it uses less digits than its factorization.

130243770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1447166 (or 1447163 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 130243770 is about 11412.4392659939. The cubic root of 130243770 is about 506.8961424930.

The spelling of 130243770 in words is "one hundred thirty million, two hundred forty-three thousand, seven hundred seventy".