2638159 has 4 divisors (see below), whose sum is σ = 2729160. Its totient is φ = 2547160.

The previous prime is 2638087. The next prime is 2638177. The reversal of 2638159 is 9518362.

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

It is a cyclic number.

It is not a de Polignac number, because 2638159 - 2⁹ = 2637647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2638199) 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, 45457 + ... + 45514.

It is an arithmetic number, because the mean of its divisors is an integer number (682290).

2^2638159 is an apocalyptic number.

2638159 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2638159 is a deficient number, since it is larger than the sum of its proper divisors (91001).

2638159 is an equidigital number, since it uses as much as digits as its factorization.

2638159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91000.

The product of its digits is 12960, while the sum is 34.

The square root of 2638159 is about 1624.2410535385. The cubic root of 2638159 is about 138.1763306417.

The spelling of 2638159 in words is "two million, six hundred thirty-eight thousand, one hundred fifty-nine".