2135719 has 2 divisors, whose sum is σ = 2135720. Its totient is φ = 2135718.

The previous prime is 2135717. The next prime is 2135723. The reversal of 2135719 is 9175312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2135719 - 2¹ = 2135717 is a prime.

It is a super-3 number, since 3×2135719³ = 29224937333495699877, which contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 2135717, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2135713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1067859 + 1067860.

It is an arithmetic number, because the mean of its divisors is an integer number (1067860).

2^2135719 is an apocalyptic number.

2135719 is a deficient number, since it is larger than the sum of its proper divisors (1).

2135719 is an equidigital number, since it uses as much as digits as its factorization.

2135719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1890, while the sum is 28.

The square root of 2135719 is about 1461.4099356443. The cubic root of 2135719 is about 128.7798862346.

The spelling of 2135719 in words is "two million, one hundred thirty-five thousand, seven hundred nineteen".