2971139 has 2 divisors, whose sum is σ = 2971140. Its totient is φ = 2971138.

The previous prime is 2971123. The next prime is 2971159. The reversal of 2971139 is 9311792.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2971139 - 2⁴ = 2971123 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2971159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1485569 + 1485570.

It is an arithmetic number, because the mean of its divisors is an integer number (1485570).

2^2971139 is an apocalyptic number.

2971139 is a deficient number, since it is larger than the sum of its proper divisors (1).

2971139 is an equidigital number, since it uses as much as digits as its factorization.

2971139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3402, while the sum is 32.

The square root of 2971139 is about 1723.6992197016. The cubic root of 2971139 is about 143.7609685392.

The spelling of 2971139 in words is "two million, nine hundred seventy-one thousand, one hundred thirty-nine".