2957231 has 2 divisors, whose sum is σ = 2957232. Its totient is φ = 2957230.

The previous prime is 2957197. The next prime is 2957237. The reversal of 2957231 is 1327592.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2957231 is a prime.

It is a super-2 number, since 2×2957231² = 17490430374722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2957194 and 2957203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2957237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1478615 + 1478616.

It is an arithmetic number, because the mean of its divisors is an integer number (1478616).

2^2957231 is an apocalyptic number.

2957231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2957231 is an equidigital number, since it uses as much as digits as its factorization.

2957231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3780, while the sum is 29.

The square root of 2957231 is about 1719.6601408418. The cubic root of 2957231 is about 143.5363009976.

It can be divided in two parts, 295 and 7231, that multiplied together give a triangular number (2133145 = T₂₀₆₅).

The spelling of 2957231 in words is "two million, nine hundred fifty-seven thousand, two hundred thirty-one".