2865949231 has 2 divisors, whose sum is σ = 2865949232. Its totient is φ = 2865949230.

The previous prime is 2865949223. The next prime is 2865949237. The reversal of 2865949231 is 1329495682.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2865949231 - 2³ = 2865949223 is a prime.

It is a super-2 number, since 2×2865949231² = 16427329989338982722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2865949237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1432974615 + 1432974616.

It is an arithmetic number, because the mean of its divisors is an integer number (1432974616).

Almost surely, 2^2865949231 is an apocalyptic number.

2865949231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2865949231 is an equidigital number, since it uses as much as digits as its factorization.

2865949231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 933120, while the sum is 49.

The square root of 2865949231 is about 53534.5610890759. The cubic root of 2865949231 is about 1420.4397948403.

The spelling of 2865949231 in words is "two billion, eight hundred sixty-five million, nine hundred forty-nine thousand, two hundred thirty-one".