1423621163 has 4 divisors (see below), whose sum is σ = 1426047000. Its totient is φ = 1421195328.

The previous prime is 1423621141. The next prime is 1423621187. The reversal of 1423621163 is 3611263241.

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

It is a cyclic number.

It is not a de Polignac number, because 1423621163 - 2⁶ = 1423621099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1423621103) 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 3 ways as a sum of consecutive naturals, for example, 1212038 + ... + 1213211.

It is an arithmetic number, because the mean of its divisors is an integer number (356511750).

Almost surely, 2^1423621163 is an apocalyptic number.

1423621163 is a deficient number, since it is larger than the sum of its proper divisors (2425837).

1423621163 is an equidigital number, since it uses as much as digits as its factorization.

1423621163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2425836.

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

The square root of 1423621163 is about 37730.9046141224. The cubic root of 1423621163 is about 1124.9454888485.

The spelling of 1423621163 in words is "one billion, four hundred twenty-three million, six hundred twenty-one thousand, one hundred sixty-three".