130842091 has 4 divisors (see below), whose sum is σ = 132498400. Its totient is φ = 129185784.

The previous prime is 130842079. The next prime is 130842097. The reversal of 130842091 is 190248031.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130842091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130842097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 828036 + ... + 828193.

It is an arithmetic number, because the mean of its divisors is an integer number (33124600).

Almost surely, 2^130842091 is an apocalyptic number.

130842091 is a deficient number, since it is larger than the sum of its proper divisors (1656309).

130842091 is an equidigital number, since it uses as much as digits as its factorization.

130842091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1656308.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 130842091 is about 11438.6227754918. The cubic root of 130842091 is about 507.6711593973.

The spelling of 130842091 in words is "one hundred thirty million, eight hundred forty-two thousand, ninety-one".