1423231619 has 8 divisors (see below), whose sum is σ = 1508403888. Its totient is φ = 1338220800.

The previous prime is 1423231591. The next prime is 1423231633. The reversal of 1423231619 is 9161323241.

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

It is a cyclic number.

It is not a de Polignac number, because 1423231619 - 2⁸ = 1423231363 is a prime.

It is a super-3 number, since 3×1423231619³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1423231679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21962 + ... + 57695.

It is an arithmetic number, because the mean of its divisors is an integer number (188550486).

Almost surely, 2^1423231619 is an apocalyptic number.

1423231619 is a deficient number, since it is larger than the sum of its proper divisors (85172269).

1423231619 is a wasteful number, since it uses less digits than its factorization.

1423231619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80725.

The product of its digits is 7776, while the sum is 32.

The square root of 1423231619 is about 37725.7421265639. The cubic root of 1423231619 is about 1124.8428735946.

The spelling of 1423231619 in words is "one billion, four hundred twenty-three million, two hundred thirty-one thousand, six hundred nineteen".