1342023509 has 2 divisors, whose sum is σ = 1342023510. Its totient is φ = 1342023508.

The previous prime is 1342023443. The next prime is 1342023539. The reversal of 1342023509 is 9053202431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1022400625 + 319622884 = 31975^2 + 17878^2 .

It is a cyclic number.

It is not a de Polignac number, because 1342023509 - 2⁸ = 1342023253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1342023539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671011754 + 671011755.

It is an arithmetic number, because the mean of its divisors is an integer number (671011755).

Almost surely, 2^1342023509 is an apocalyptic number.

It is an amenable number.

1342023509 is a deficient number, since it is larger than the sum of its proper divisors (1).

1342023509 is an equidigital number, since it uses as much as digits as its factorization.

1342023509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 1342023509 is about 36633.6390357278. The cubic root of 1342023509 is about 1103.0284340394.

The spelling of 1342023509 in words is "one billion, three hundred forty-two million, twenty-three thousand, five hundred nine".