405245113 has 16 divisors (see below), whose sum is σ = 514855936. Its totient is φ = 310288320.

The previous prime is 405245083. The next prime is 405245131. The reversal of 405245113 is 311542504.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 405245113 - 2²⁵ = 371690681 is a prime.

It is a super-2 number, since 2×405245113² = 328447203220765538, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (405245153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69006 + ... + 74647.

It is an arithmetic number, because the mean of its divisors is an integer number (32178496).

Almost surely, 2^405245113 is an apocalyptic number.

It is an amenable number.

405245113 is a deficient number, since it is larger than the sum of its proper divisors (109610823).

405245113 is a wasteful number, since it uses less digits than its factorization.

405245113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143704.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 405245113 is about 20130.7007577978. The cubic root of 405245113 is about 740.0128516151.

Adding to 405245113 its reverse (311542504), we get a palindrome (716787617).

The spelling of 405245113 in words is "four hundred five million, two hundred forty-five thousand, one hundred thirteen".