123423542 has 8 divisors (see below), whose sum is σ = 201965832. Its totient is φ = 56101600.

The previous prime is 123423541. The next prime is 123423569. The reversal of 123423542 is 245324321.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123423541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2805059 + ... + 2805102.

It is an arithmetic number, because the mean of its divisors is an integer number (25245729).

Almost surely, 2^123423542 is an apocalyptic number.

123423542 is a deficient number, since it is larger than the sum of its proper divisors (78542290).

123423542 is a wasteful number, since it uses less digits than its factorization.

123423542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5610174.

The product of its digits is 5760, while the sum is 26.

The square root of 123423542 is about 11109.6148448090. The cubic root of 123423542 is about 497.8891572258.

Adding to 123423542 its reverse (245324321), we get a palindrome (368747863).

The spelling of 123423542 in words is "one hundred twenty-three million, four hundred twenty-three thousand, five hundred forty-two".