3143546947 has 2 divisors, whose sum is σ = 3143546948. Its totient is φ = 3143546946.

The previous prime is 3143546921. The next prime is 3143546969. The reversal of 3143546947 is 7496453413.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3143546947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3143546897 and 3143546906.

It is not a weakly prime, because it can be changed into another prime (3143543947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1571773473 + 1571773474.

It is an arithmetic number, because the mean of its divisors is an integer number (1571773474).

Almost surely, 2^3143546947 is an apocalyptic number.

3143546947 is a deficient number, since it is larger than the sum of its proper divisors (1).

3143546947 is an equidigital number, since it uses as much as digits as its factorization.

3143546947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 46.

The square root of 3143546947 is about 56067.3429636183. The cubic root of 3143546947 is about 1464.8955179479.

The spelling of 3143546947 in words is "three billion, one hundred forty-three million, five hundred forty-six thousand, nine hundred forty-seven".