2751997231 has 2 divisors, whose sum is σ = 2751997232. Its totient is φ = 2751997230.

The previous prime is 2751997223. The next prime is 2751997273. The reversal of 2751997231 is 1327991572.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2751997231 - 2³ = 2751997223 is a prime.

It is a super-2 number, since 2×2751997231² = 15146977518863334722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2751997201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1375998615 + 1375998616.

It is an arithmetic number, because the mean of its divisors is an integer number (1375998616).

Almost surely, 2^2751997231 is an apocalyptic number.

2751997231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2751997231 is an equidigital number, since it uses as much as digits as its factorization.

2751997231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 238140, while the sum is 46.

The square root of 2751997231 is about 52459.4818026255. The cubic root of 2751997231 is about 1401.3587541492.

It can be divided in two parts, 27519 and 97231, that added together give a triangular number (124750 = T₄₉₉).

The spelling of 2751997231 in words is "two billion, seven hundred fifty-one million, nine hundred ninety-seven thousand, two hundred thirty-one".