130947861 has 16 divisors (see below), whose sum is σ = 191278080. Its totient is φ = 79025520.

The previous prime is 130947841. The next prime is 130947863. The reversal of 130947861 is 168749031.

It is not a de Polignac number, because 130947861 - 2¹⁵ = 130915093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130947863) 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, 415 + ... + 16188.

It is an arithmetic number, because the mean of its divisors is an integer number (11954880).

Almost surely, 2^130947861 is an apocalyptic number.

130947861 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

130947861 is a deficient number, since it is larger than the sum of its proper divisors (60330219).

130947861 is a wasteful number, since it uses less digits than its factorization.

130947861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16856.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 130947861 is about 11443.2452127882. The cubic root of 130947861 is about 507.8079194556.

The spelling of 130947861 in words is "one hundred thirty million, nine hundred forty-seven thousand, eight hundred sixty-one".