1423143651 has 16 divisors (see below), whose sum is σ = 2000000160. Its totient is φ = 898759680.

The previous prime is 1423143649. The next prime is 1423143677. The reversal of 1423143651 is 1563413241.

It is not a de Polignac number, because 1423143651 - 2¹ = 1423143649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1423143751) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 149710 + ... + 158931.

It is an arithmetic number, because the mean of its divisors is an integer number (125000010).

Almost surely, 2^1423143651 is an apocalyptic number.

1423143651 is a deficient number, since it is larger than the sum of its proper divisors (576856509).

1423143651 is a wasteful number, since it uses less digits than its factorization.

1423143651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308726.

The product of its digits is 8640, while the sum is 30.

The square root of 1423143651 is about 37724.5762202838. The cubic root of 1423143651 is about 1124.8196981172.

Adding to 1423143651 its reverse (1563413241), we get a palindrome (2986556892).

The spelling of 1423143651 in words is "one billion, four hundred twenty-three million, one hundred forty-three thousand, six hundred fifty-one".