2611139 has 2 divisors, whose sum is σ = 2611140. Its totient is φ = 2611138.

The previous prime is 2611123. The next prime is 2611157. The reversal of 2611139 is 9311162.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2611139 - 2⁴ = 2611123 is a prime.

It is not a weakly prime, because it can be changed into another prime (2611159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1305569 + 1305570.

It is an arithmetic number, because the mean of its divisors is an integer number (1305570).

2^2611139 is an apocalyptic number.

2611139 is a deficient number, since it is larger than the sum of its proper divisors (1).

2611139 is an equidigital number, since it uses as much as digits as its factorization.

2611139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 324, while the sum is 23.

The square root of 2611139 is about 1615.9019153402. The cubic root of 2611139 is about 137.7029773526.

Adding to 2611139 its sum of digits (23), we get a palindrome (2611162).

The spelling of 2611139 in words is "two million, six hundred eleven thousand, one hundred thirty-nine".