2719231 has 2 divisors, whose sum is σ = 2719232. Its totient is φ = 2719230.

The previous prime is 2719219. The next prime is 2719273. The reversal of 2719231 is 1329172.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2719231 - 2⁹ = 2718719 is a prime.

It is a super-2 number, since 2×2719231² = 14788434462722, which contains 22 as substring.

It is an Ulam number.

2719231 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2719196 and 2719205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2719291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1359615 + 1359616.

It is an arithmetic number, because the mean of its divisors is an integer number (1359616).

2^2719231 is an apocalyptic number.

2719231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2719231 is an equidigital number, since it uses as much as digits as its factorization.

2719231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 756, while the sum is 25.

The square root of 2719231 is about 1649.0090963970. The cubic root of 2719231 is about 139.5774846489.

The spelling of 2719231 in words is "two million, seven hundred nineteen thousand, two hundred thirty-one".