1423431146 has 8 divisors (see below), whose sum is σ = 2165219424. Its totient is φ = 701691340.

The previous prime is 1423431137. The next prime is 1423431167. The reversal of 1423431146 is 6411343241.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5011940 + ... + 5012223.

It is an arithmetic number, because the mean of its divisors is an integer number (270652428).

Almost surely, 2^1423431146 is an apocalyptic number.

1423431146 is a deficient number, since it is larger than the sum of its proper divisors (741788278).

1423431146 is a wasteful number, since it uses less digits than its factorization.

1423431146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10024236.

The product of its digits is 6912, while the sum is 29.

The square root of 1423431146 is about 37728.3864749077. The cubic root of 1423431146 is about 1124.8954361416.

Adding to 1423431146 its reverse (6411343241), we get a palindrome (7834774387).

The spelling of 1423431146 in words is "one billion, four hundred twenty-three million, four hundred thirty-one thousand, one hundred forty-six".