3143491431 has 4 divisors (see below), whose sum is σ = 4191321912. Its totient is φ = 2095660952.

The previous prime is 3143491367. The next prime is 3143491433. The reversal of 3143491431 is 1341943413.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3143491431 - 2⁶ = 3143491367 is a prime.

It is a super-2 number, since 2×3143491431² = 19763076753540855522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3143491392 and 3143491401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3143491433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 523915236 + ... + 523915241.

It is an arithmetic number, because the mean of its divisors is an integer number (1047830478).

Almost surely, 2^3143491431 is an apocalyptic number.

3143491431 is a deficient number, since it is larger than the sum of its proper divisors (1047830481).

3143491431 is a wasteful number, since it uses less digits than its factorization.

3143491431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047830480.

The product of its digits is 15552, while the sum is 33.

The square root of 3143491431 is about 56066.8478782248. The cubic root of 3143491431 is about 1464.8868943962.

The spelling of 3143491431 in words is "three billion, one hundred forty-three million, four hundred ninety-one thousand, four hundred thirty-one".