1423004309 has 2 divisors, whose sum is σ = 1423004310. Its totient is φ = 1423004308.

The previous prime is 1423004293. The next prime is 1423004333. The reversal of 1423004309 is 9034003241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1195084900 + 227919409 = 34570^2 + 15097^2 .

It is a cyclic number.

It is not a de Polignac number, because 1423004309 - 2⁴ = 1423004293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1423004339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711502154 + 711502155.

It is an arithmetic number, because the mean of its divisors is an integer number (711502155).

Almost surely, 2^1423004309 is an apocalyptic number.

It is an amenable number.

1423004309 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423004309 is an equidigital number, since it uses as much as digits as its factorization.

1423004309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 1423004309 is about 37722.7293418703. The cubic root of 1423004309 is about 1124.7829860252.

The spelling of 1423004309 in words is "one billion, four hundred twenty-three million, four thousand, three hundred nine".