4004531313 has 4 divisors (see below), whose sum is σ = 5339375088. Its totient is φ = 2669687540.

The previous prime is 4004531309. The next prime is 4004531317. The reversal of 4004531313 is 3131354004.

It is a happy number.

4004531313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (4004531309) and next prime (4004531317).

It is a cyclic number.

It is not a de Polignac number, because 4004531313 - 2² = 4004531309 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4004531317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 667421883 + ... + 667421888.

It is an arithmetic number, because the mean of its divisors is an integer number (1334843772).

Almost surely, 2^4004531313 is an apocalyptic number.

It is an amenable number.

4004531313 is a deficient number, since it is larger than the sum of its proper divisors (1334843775).

4004531313 is a wasteful number, since it uses less digits than its factorization.

4004531313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334843774.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 4004531313 is about 63281.3662384118. The cubic root of 4004531313 is about 1588.0002433501. Note that the first 3 decimals are identical.

Adding to 4004531313 its reverse (3131354004), we get a palindrome (7135885317).

The spelling of 4004531313 in words is "four billion, four million, five hundred thirty-one thousand, three hundred thirteen".