2290139 has 2 divisors, whose sum is σ = 2290140. Its totient is φ = 2290138.

The previous prime is 2290117. The next prime is 2290147. The reversal of 2290139 is 9310922.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2290139 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2290039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1145069 + 1145070.

It is an arithmetic number, because the mean of its divisors is an integer number (1145070).

2^2290139 is an apocalyptic number.

2290139 is a deficient number, since it is larger than the sum of its proper divisors (1).

2290139 is an equidigital number, since it uses as much as digits as its factorization.

2290139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 2290139 is about 1513.3205212380. The cubic root of 2290139 is about 131.8116958434.

The spelling of 2290139 in words is "two million, two hundred ninety thousand, one hundred thirty-nine".