130561491 has 8 divisors (see below), whose sum is σ = 179697664. Its totient is φ = 84233160.

The previous prime is 130561489. The next prime is 130561499. The reversal of 130561491 is 194165031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 130561491 - 2¹ = 130561489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130561499) 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, 701851 + ... + 702036.

It is an arithmetic number, because the mean of its divisors is an integer number (22462208).

Almost surely, 2^130561491 is an apocalyptic number.

130561491 is a deficient number, since it is larger than the sum of its proper divisors (49136173).

130561491 is a wasteful number, since it uses less digits than its factorization.

130561491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1403921.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 130561491 is about 11426.3507297825. The cubic root of 130561491 is about 507.3079875747.

The spelling of 130561491 in words is "one hundred thirty million, five hundred sixty-one thousand, four hundred ninety-one".