3143331491 has 2 divisors, whose sum is σ = 3143331492. Its totient is φ = 3143331490.

The previous prime is 3143331487. The next prime is 3143331493. The reversal of 3143331491 is 1941333413.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3143331491 - 2² = 3143331487 is a prime.

Together with 3143331493, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3143331493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1571665745 + 1571665746.

It is an arithmetic number, because the mean of its divisors is an integer number (1571665746).

Almost surely, 2^3143331491 is an apocalyptic number.

3143331491 is a deficient number, since it is larger than the sum of its proper divisors (1).

3143331491 is an equidigital number, since it uses as much as digits as its factorization.

3143331491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 32.

The square root of 3143331491 is about 56065.4215269983. The cubic root of 3143331491 is about 1464.8620496243.

The spelling of 3143331491 in words is "three billion, one hundred forty-three million, three hundred thirty-one thousand, four hundred ninety-one".