130961971 has 4 divisors (see below), whose sum is σ = 149670832. Its totient is φ = 112253112.

The previous prime is 130961959. The next prime is 130961983. The reversal of 130961971 is 179169031.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (130961959) and next prime (130961983).

It is a cyclic number.

It is not a de Polignac number, because 130961971 - 2⁵ = 130961939 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 130961971.

It is not an unprimeable number, because it can be changed into a prime (130961671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9354420 + ... + 9354433.

It is an arithmetic number, because the mean of its divisors is an integer number (37417708).

Almost surely, 2^130961971 is an apocalyptic number.

130961971 is a deficient number, since it is larger than the sum of its proper divisors (18708861).

130961971 is an equidigital number, since it uses as much as digits as its factorization.

130961971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18708860.

The product of its (nonzero) digits is 10206, while the sum is 37.

The square root of 130961971 is about 11443.8617170953. The cubic root of 130961971 is about 507.8261580440.

The spelling of 130961971 in words is "one hundred thirty million, nine hundred sixty-one thousand, nine hundred seventy-one".