426019123 has 4 divisors (see below), whose sum is σ = 426154608. Its totient is φ = 425883640.

The previous prime is 426019063. The next prime is 426019199. The reversal of 426019123 is 321910624.

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 426019123 - 2¹³ = 426010931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 426019091 and 426019100.

It is not an unprimeable number, because it can be changed into a prime (426019523) 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, 62911 + ... + 69352.

It is an arithmetic number, because the mean of its divisors is an integer number (106538652).

Almost surely, 2^426019123 is an apocalyptic number.

426019123 is a deficient number, since it is larger than the sum of its proper divisors (135485).

426019123 is a wasteful number, since it uses less digits than its factorization.

426019123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135484.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 426019123 is about 20640.2306915402. The cubic root of 426019123 is about 752.4477790717.

Adding to 426019123 its reverse (321910624), we get a palindrome (747929747).

The spelling of 426019123 in words is "four hundred twenty-six million, nineteen thousand, one hundred twenty-three".