1227396043 has 2 divisors, whose sum is σ = 1227396044. Its totient is φ = 1227396042.

The previous prime is 1227396041. The next prime is 1227396091. The reversal of 1227396043 is 3406937221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1227396043 - 2¹ = 1227396041 is a prime.

Together with 1227396041, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1227395993 and 1227396011.

It is not a weakly prime, because it can be changed into another prime (1227396041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613698021 + 613698022.

It is an arithmetic number, because the mean of its divisors is an integer number (613698022).

Almost surely, 2^1227396043 is an apocalyptic number.

1227396043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1227396043 is an equidigital number, since it uses as much as digits as its factorization.

1227396043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 1227396043 is about 35034.2124643897. The cubic root of 1227396043 is about 1070.6846414660.

The spelling of 1227396043 in words is "one billion, two hundred twenty-seven million, three hundred ninety-six thousand, forty-three".