130218761 has 4 divisors (see below), whose sum is σ = 137072400. Its totient is φ = 123365124.

The previous prime is 130218719. The next prime is 130218763. The reversal of 130218761 is 167812031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 130218761 - 2¹⁴ = 130202377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130218763) 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, 3426791 + ... + 3426828.

It is an arithmetic number, because the mean of its divisors is an integer number (34268100).

Almost surely, 2^130218761 is an apocalyptic number.

It is an amenable number.

130218761 is a deficient number, since it is larger than the sum of its proper divisors (6853639).

130218761 is an equidigital number, since it uses as much as digits as its factorization.

130218761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6853638.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 130218761 is about 11411.3435230038. The cubic root of 130218761 is about 506.8636962139.

The spelling of 130218761 in words is "one hundred thirty million, two hundred eighteen thousand, seven hundred sixty-one".