1236234473 has 2 divisors, whose sum is σ = 1236234474. Its totient is φ = 1236234472.

The previous prime is 1236234469. The next prime is 1236234497. The reversal of 1236234473 is 3744326321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1105429504 + 130804969 = 33248^2 + 11437^2 .

It is a cyclic number.

It is not a de Polignac number, because 1236234473 - 2² = 1236234469 is a prime.

It is not a weakly prime, because it can be changed into another prime (1236234413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 618117236 + 618117237.

It is an arithmetic number, because the mean of its divisors is an integer number (618117237).

Almost surely, 2^1236234473 is an apocalyptic number.

It is an amenable number.

1236234473 is a deficient number, since it is larger than the sum of its proper divisors (1).

1236234473 is an equidigital number, since it uses as much as digits as its factorization.

1236234473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 35.

The square root of 1236234473 is about 35160.1261800921. The cubic root of 1236234473 is about 1073.2484830520.

The spelling of 1236234473 in words is "one billion, two hundred thirty-six million, two hundred thirty-four thousand, four hundred seventy-three".