405120130 has 16 divisors (see below), whose sum is σ = 729531000. Its totient is φ = 161978112.

The previous prime is 405120127. The next prime is 405120161. The reversal of 405120130 is 31021504.

It can be written as a sum of positive squares in 4 ways, for example, as 316590849 + 88529281 = 17793^2 + 9409^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20122 + ... + 34858.

Almost surely, 2^405120130 is an apocalyptic number.

405120130 is a deficient number, since it is larger than the sum of its proper divisors (324410870).

405120130 is a wasteful number, since it uses less digits than its factorization.

405120130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17493.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 405120130 is about 20127.5962300519. The cubic root of 405120130 is about 739.9367671803.

Adding to 405120130 its reverse (31021504), we get a palindrome (436141634).

The spelling of 405120130 in words is "four hundred five million, one hundred twenty thousand, one hundred thirty".