130405234 has 8 divisors (see below), whose sum is σ = 195690348. Its totient is φ = 65175120.

The previous prime is 130405211. The next prime is 130405243. The reversal of 130405234 is 432504031.

It can be written as a sum of positive squares in 2 ways, for example, as 125552025 + 4853209 = 11205^2 + 2203^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7197 + ... + 17680.

Almost surely, 2^130405234 is an apocalyptic number.

130405234 is a deficient number, since it is larger than the sum of its proper divisors (65285114).

130405234 is a wasteful number, since it uses less digits than its factorization.

130405234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27500.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 130405234 is about 11419.5111103760. The cubic root of 130405234 is about 507.1055234115.

Adding to 130405234 its reverse (432504031), we get a palindrome (562909265).

The spelling of 130405234 in words is "one hundred thirty million, four hundred five thousand, two hundred thirty-four".