3124279 has 2 divisors, whose sum is σ = 3124280. Its totient is φ = 3124278.

The previous prime is 3124217. The next prime is 3124291. The reversal of 3124279 is 9724213.

It is a strong prime.

It is an emirp because it is prime and its reverse (9724213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3124279 - 2¹⁵ = 3091511 is a prime.

It is a super-2 number, since 2×3124279² = 19522238539682, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3124579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1562139 + 1562140.

It is an arithmetic number, because the mean of its divisors is an integer number (1562140).

Almost surely, 2^3124279 is an apocalyptic number.

3124279 is a deficient number, since it is larger than the sum of its proper divisors (1).

3124279 is an equidigital number, since it uses as much as digits as its factorization.

3124279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 28.

The square root of 3124279 is about 1767.5630116067. The cubic root of 3124279 is about 146.1896422229.

It can be divided in two parts, 3124 and 279, that added together give a triangular number (3403 = T₈₂).

The spelling of 3124279 in words is "three million, one hundred twenty-four thousand, two hundred seventy-nine".