1423137443 has 16 divisors (see below), whose sum is σ = 1827710976. Its totient is φ = 1077040800.

The previous prime is 1423137437. The next prime is 1423137467. The reversal of 1423137443 is 3447313241.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1423137443 - 2⁸ = 1423137187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1423137043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 337883 + ... + 342068.

It is an arithmetic number, because the mean of its divisors is an integer number (114231936).

Almost surely, 2^1423137443 is an apocalyptic number.

1423137443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1423137443 is a deficient number, since it is larger than the sum of its proper divisors (404573533).

1423137443 is a wasteful number, since it uses less digits than its factorization.

1423137443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679994.

The product of its digits is 24192, while the sum is 32.

The square root of 1423137443 is about 37724.4939396144. The cubic root of 1423137443 is about 1124.8180625618.

The spelling of 1423137443 in words is "one billion, four hundred twenty-three million, one hundred thirty-seven thousand, four hundred forty-three".