130646405 has 8 divisors (see below), whose sum is σ = 157227000. Its totient is φ = 104216256.

The previous prime is 130646401. The next prime is 130646407. The reversal of 130646405 is 504646031.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12945604 + 117700801 = 3598^2 + 10849^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 130646405 - 2² = 130646401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130646401) 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, 35690 + ... + 39179.

It is an arithmetic number, because the mean of its divisors is an integer number (19653375).

Almost surely, 2^130646405 is an apocalyptic number.

It is an amenable number.

130646405 is a deficient number, since it is larger than the sum of its proper divisors (26580595).

130646405 is an equidigital number, since it uses as much as digits as its factorization.

130646405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75223.

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

The square root of 130646405 is about 11430.0658353310. The cubic root of 130646405 is about 507.4179439757.

The spelling of 130646405 in words is "one hundred thirty million, six hundred forty-six thousand, four hundred five".