4013004145 has 4 divisors (see below), whose sum is σ = 4815604980. Its totient is φ = 3210403312.

The previous prime is 4013004103. The next prime is 4013004167. The reversal of 4013004145 is 5414003104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1190526016 + 2822478129 = 34504^2 + 53127^2 .

It is a cyclic number.

It is not a de Polignac number, because 4013004145 - 2¹³ = 4012995953 is a prime.

It is a super-2 number, since 2×4013004145² = 32208404535574362050, which contains 22 as substring.

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, 401300410 + ... + 401300419.

It is an arithmetic number, because the mean of its divisors is an integer number (1203901245).

Almost surely, 2^4013004145 is an apocalyptic number.

It is an amenable number.

4013004145 is a deficient number, since it is larger than the sum of its proper divisors (802600835).

4013004145 is an equidigital number, since it uses as much as digits as its factorization.

4013004145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802600834.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 4013004145 is about 63348.2765748209. The cubic root of 4013004145 is about 1589.1194239359.

Adding to 4013004145 its reverse (5414003104), we get a palindrome (9427007249).

The spelling of 4013004145 in words is "four billion, thirteen million, four thousand, one hundred forty-five".