1274216143 has 2 divisors, whose sum is σ = 1274216144. Its totient is φ = 1274216142.

The previous prime is 1274216071. The next prime is 1274216173. The reversal of 1274216143 is 3416124721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1274216143 - 2²⁵ = 1240661711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1274216173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 637108071 + 637108072.

It is an arithmetic number, because the mean of its divisors is an integer number (637108072).

Almost surely, 2^1274216143 is an apocalyptic number.

1274216143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1274216143 is an equidigital number, since it uses as much as digits as its factorization.

1274216143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 31.

The square root of 1274216143 is about 35696.1642617243. The cubic root of 1274216143 is about 1084.1291810005.

The spelling of 1274216143 in words is "one billion, two hundred seventy-four million, two hundred sixteen thousand, one hundred forty-three".