130347561 has 4 divisors (see below), whose sum is σ = 173796752. Its totient is φ = 86898372.

The previous prime is 130347557. The next prime is 130347631. The reversal of 130347561 is 165743031.

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 not a de Polignac number, because 130347561 - 2² = 130347557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130347521) 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, 21724591 + ... + 21724596.

It is an arithmetic number, because the mean of its divisors is an integer number (43449188).

Almost surely, 2^130347561 is an apocalyptic number.

It is an amenable number.

130347561 is a deficient number, since it is larger than the sum of its proper divisors (43449191).

130347561 is an equidigital number, since it uses as much as digits as its factorization.

130347561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43449190.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 130347561 is about 11416.9856354469. The cubic root of 130347561 is about 507.0307549161.

The spelling of 130347561 in words is "one hundred thirty million, three hundred forty-seven thousand, five hundred sixty-one".