2004155291 has 2 divisors, whose sum is σ = 2004155292. Its totient is φ = 2004155290.

The previous prime is 2004155233. The next prime is 2004155299. The reversal of 2004155291 is 1925514002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2004155291 - 2²² = 1999960987 is a prime.

It is not a weakly prime, because it can be changed into another prime (2004155299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1002077645 + 1002077646.

It is an arithmetic number, because the mean of its divisors is an integer number (1002077646).

Almost surely, 2^2004155291 is an apocalyptic number.

2004155291 is a deficient number, since it is larger than the sum of its proper divisors (1).

2004155291 is an equidigital number, since it uses as much as digits as its factorization.

2004155291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 2004155291 is about 44767.7930101541. The cubic root of 2004155291 is about 1260.7930027370.

Adding to 2004155291 its reverse (1925514002), we get a palindrome (3929669293).

The spelling of 2004155291 in words is "two billion, four million, one hundred fifty-five thousand, two hundred ninety-one".