1247483143 has 2 divisors, whose sum is σ = 1247483144. Its totient is φ = 1247483142.

The previous prime is 1247483119. The next prime is 1247483201. The reversal of 1247483143 is 3413847421.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1247483143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1247483113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 623741571 + 623741572.

It is an arithmetic number, because the mean of its divisors is an integer number (623741572).

Almost surely, 2^1247483143 is an apocalyptic number.

1247483143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1247483143 is an equidigital number, since it uses as much as digits as its factorization.

1247483143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64512, while the sum is 37.

The square root of 1247483143 is about 35319.7273913602. The cubic root of 1247483143 is about 1076.4938720269.

The spelling of 1247483143 in words is "one billion, two hundred forty-seven million, four hundred eighty-three thousand, one hundred forty-three".