2997139 has 4 divisors (see below), whose sum is σ = 3012400. Its totient is φ = 2981880.

The previous prime is 2997133. The next prime is 2997157. The reversal of 2997139 is 9317992.

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 2997139 - 2³ = 2997131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2997131) 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, 7332 + ... + 7729.

It is an arithmetic number, because the mean of its divisors is an integer number (753100).

2^2997139 is an apocalyptic number.

2997139 is a deficient number, since it is larger than the sum of its proper divisors (15261).

2997139 is a wasteful number, since it uses less digits than its factorization.

2997139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15260.

The product of its digits is 30618, while the sum is 40.

The square root of 2997139 is about 1731.2247110066. The cubic root of 2997139 is about 144.1790949373.

It can be divided in two parts, 2997 and 139, that added together give a square (3136 = 56²).

The spelling of 2997139 in words is "two million, nine hundred ninety-seven thousand, one hundred thirty-nine".