2111539 has 2 divisors, whose sum is σ = 2111540. Its totient is φ = 2111538.

The previous prime is 2111533. The next prime is 2111567. The reversal of 2111539 is 9351112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2111539 - 2³ = 2111531 is a prime.

2111539 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2111531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055769 + 1055770.

It is an arithmetic number, because the mean of its divisors is an integer number (1055770).

2^2111539 is an apocalyptic number.

2111539 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111539 is an equidigital number, since it uses as much as digits as its factorization.

2111539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 270, while the sum is 22.

The square root of 2111539 is about 1453.1135537184. The cubic root of 2111539 is about 128.2920374617.

The spelling of 2111539 in words is "two million, one hundred eleven thousand, five hundred thirty-nine".