1423142345 has 4 divisors (see below), whose sum is σ = 1707770820. Its totient is φ = 1138513872.

The previous prime is 1423142321. The next prime is 1423142417. The reversal of 1423142345 is 5432413241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 153859216 + 1269283129 = 12404^2 + 35627^2 .

It is a cyclic number.

It is not a de Polignac number, because 1423142345 - 2¹⁸ = 1422880201 is a prime.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 142314230 + ... + 142314239.

It is an arithmetic number, because the mean of its divisors is an integer number (426942705).

Almost surely, 2^1423142345 is an apocalyptic number.

It is an amenable number.

1423142345 is a deficient number, since it is larger than the sum of its proper divisors (284628475).

1423142345 is an equidigital number, since it uses as much as digits as its factorization.

1423142345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284628474.

The product of its digits is 11520, while the sum is 29.

The square root of 1423142345 is about 37724.5589106089. The cubic root of 1423142345 is about 1124.8193540397.

Adding to 1423142345 its reverse (5432413241), we get a palindrome (6855555586).

The spelling of 1423142345 in words is "one billion, four hundred twenty-three million, one hundred forty-two thousand, three hundred forty-five".