1423340129 has 2 divisors, whose sum is σ = 1423340130. Its totient is φ = 1423340128.

The previous prime is 1423340101. The next prime is 1423340143. The reversal of 1423340129 is 9210433241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 760380625 + 662959504 = 27575^2 + 25748^2 .

It is an emirp because it is prime and its reverse (9210433241) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1423340129 is a prime.

It is not a weakly prime, because it can be changed into another prime (1423340029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711670064 + 711670065.

It is an arithmetic number, because the mean of its divisors is an integer number (711670065).

Almost surely, 2^1423340129 is an apocalyptic number.

It is an amenable number.

1423340129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423340129 is an equidigital number, since it uses as much as digits as its factorization.

1423340129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 1423340129 is about 37727.1802418363. The cubic root of 1423340129 is about 1124.8714596183.

The spelling of 1423340129 in words is "one billion, four hundred twenty-three million, three hundred forty thousand, one hundred twenty-nine".