130234778 has 16 divisors (see below), whose sum is σ = 210651840. Its totient is φ = 60184800.

The previous prime is 130234777. The next prime is 130234781. The reversal of 130234778 is 877432031.

It is a super-2 number, since 2×130234778² = 33922194801418568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (130234777) 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, 40238 + ... + 43353.

It is an arithmetic number, because the mean of its divisors is an integer number (13165740).

Almost surely, 2^130234778 is an apocalyptic number.

130234778 is a deficient number, since it is larger than the sum of its proper divisors (80417062).

130234778 is a wasteful number, since it uses less digits than its factorization.

130234778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83653.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 130234778 is about 11412.0453030997. The cubic root of 130234778 is about 506.8844768934.

The spelling of 130234778 in words is "one hundred thirty million, two hundred thirty-four thousand, seven hundred seventy-eight".