423848137 has 4 divisors (see below), whose sum is σ = 438463620. Its totient is φ = 409232656.

The previous prime is 423848129. The next prime is 423848141. The reversal of 423848137 is 731848324.

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

It can be written as a sum of positive squares in 2 ways, for example, as 250557241 + 173290896 = 15829^2 + 13164^2 .

It is a cyclic number.

It is not a de Polignac number, because 423848137 - 2³ = 423848129 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 423848137.

It is not an unprimeable number, because it can be changed into a prime (423848107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7307698 + ... + 7307755.

It is an arithmetic number, because the mean of its divisors is an integer number (109615905).

Almost surely, 2^423848137 is an apocalyptic number.

It is an amenable number.

423848137 is a deficient number, since it is larger than the sum of its proper divisors (14615483).

423848137 is a wasteful number, since it uses less digits than its factorization.

423848137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14615482.

The product of its digits is 129024, while the sum is 40.

The square root of 423848137 is about 20587.5723921010. The cubic root of 423848137 is about 751.1674481805.

The spelling of 423848137 in words is "four hundred twenty-three million, eight hundred forty-eight thousand, one hundred thirty-seven".