1226349143 has 2 divisors, whose sum is σ = 1226349144. Its totient is φ = 1226349142.

The previous prime is 1226349109. The next prime is 1226349191. The reversal of 1226349143 is 3419436221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1226349143 - 2²⁴ = 1209571927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1226349193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613174571 + 613174572.

It is an arithmetic number, because the mean of its divisors is an integer number (613174572).

Almost surely, 2^1226349143 is an apocalyptic number.

1226349143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1226349143 is an equidigital number, since it uses as much as digits as its factorization.

1226349143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 35.

The square root of 1226349143 is about 35019.2681676816. The cubic root of 1226349143 is about 1070.3801435557.

The spelling of 1226349143 in words is "one billion, two hundred twenty-six million, three hundred forty-nine thousand, one hundred forty-three".