130894731 has 16 divisors (see below), whose sum is σ = 211547520. Its totient is φ = 79329960.

The previous prime is 130894711. The next prime is 130894733. The reversal of 130894731 is 137498031.

It is a happy number.

It is not a de Polignac number, because 130894731 - 2¹¹ = 130892683 is a prime.

It is a super-2 number, since 2×130894731² = 34266861207124722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (130894733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220065 + ... + 220658.

It is an arithmetic number, because the mean of its divisors is an integer number (13221720).

Almost surely, 2^130894731 is an apocalyptic number.

130894731 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

130894731 is a deficient number, since it is larger than the sum of its proper divisors (80652789).

130894731 is a wasteful number, since it uses less digits than its factorization.

130894731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440743 (or 440737 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 130894731 is about 11440.9235204156. The cubic root of 130894731 is about 507.7392318516.

The spelling of 130894731 in words is "one hundred thirty million, eight hundred ninety-four thousand, seven hundred thirty-one".