423139 has 4 divisors (see below), whose sum is σ = 437760. Its totient is φ = 408520.

The previous prime is 423133. The next prime is 423173. The reversal of 423139 is 931324.

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 423139 - 2⁹ = 422627 is a prime.

It is a super-2 number, since 2×423139² = 358093226642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7267 + ... + 7324.

It is an arithmetic number, because the mean of its divisors is an integer number (109440).

2⁴²³¹³⁹ is an apocalyptic number.

423139 is a deficient number, since it is larger than the sum of its proper divisors (14621).

423139 is a wasteful number, since it uses less digits than its factorization.

423139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14620.

The product of its digits is 648, while the sum is 22.

The square root of 423139 is about 650.4913527481. The cubic root of 423139 is about 75.0748290204.

The spelling of 423139 in words is "four hundred twenty-three thousand, one hundred thirty-nine".