2801139 has 16 divisors (see below), whose sum is σ = 4216320. Its totient is φ = 1638560.

The previous prime is 2801137. The next prime is 2801179. The reversal of 2801139 is 9311082.

It is not a de Polignac number, because 2801139 - 2¹ = 2801137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2801137) 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, 507 + ... + 2420.

It is an arithmetic number, because the mean of its divisors is an integer number (263520).

2^2801139 is an apocalyptic number.

2801139 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2801139 is a deficient number, since it is larger than the sum of its proper divisors (1415181).

2801139 is a wasteful number, since it uses less digits than its factorization.

2801139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2970.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 2801139 is about 1673.6603598102. The cubic root of 2801139 is about 140.9650836534.

The spelling of 2801139 in words is "two million, eight hundred one thousand, one hundred thirty-nine".