130404665 has 4 divisors (see below), whose sum is σ = 156485604. Its totient is φ = 104323728.

The previous prime is 130404661. The next prime is 130404667. The reversal of 130404665 is 566404031.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 566404031 = 613 ⋅923987.

It can be written as a sum of positive squares in 2 ways, for example, as 92409769 + 37994896 = 9613^2 + 6164^2 .

It is a cyclic number.

It is not a de Polignac number, because 130404665 - 2² = 130404661 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (130404661) 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, 13040462 + ... + 13040471.

It is an arithmetic number, because the mean of its divisors is an integer number (39121401).

Almost surely, 2^130404665 is an apocalyptic number.

It is an amenable number.

130404665 is a deficient number, since it is larger than the sum of its proper divisors (26080939).

130404665 is an equidigital number, since it uses as much as digits as its factorization.

130404665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26080938.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 130404665 is about 11419.4861968479. The cubic root of 130404665 is about 507.1047858556.

Adding to 130404665 its reverse (566404031), we get a palindrome (696808696).

The spelling of 130404665 in words is "one hundred thirty million, four hundred four thousand, six hundred sixty-five".