123544442 has 8 divisors (see below), whose sum is σ = 211790496. Its totient is φ = 52947612.

The previous prime is 123544433. The next prime is 123544469. The reversal of 123544442 is 244445321.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4412288 + ... + 4412315.

It is an arithmetic number, because the mean of its divisors is an integer number (26473812).

Almost surely, 2^123544442 is an apocalyptic number.

123544442 is a deficient number, since it is larger than the sum of its proper divisors (88246054).

123544442 is an equidigital number, since it uses as much as digits as its factorization.

123544442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8824612.

The product of its digits is 15360, while the sum is 29.

The square root of 123544442 is about 11115.0547457041. The cubic root of 123544442 is about 498.0516739120.

Adding to 123544442 its reverse (244445321), we get a palindrome (367989763).

The spelling of 123544442 in words is "one hundred twenty-three million, five hundred forty-four thousand, four hundred forty-two".