123542255 has 4 divisors (see below), whose sum is σ = 148250712. Its totient is φ = 98833800.

The previous prime is 123542249. The next prime is 123542257. The reversal of 123542255 is 552245321.

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

It is not a de Polignac number, because 123542255 - 2¹² = 123538159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123542257) 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, 12354221 + ... + 12354230.

It is an arithmetic number, because the mean of its divisors is an integer number (37062678).

Almost surely, 2^123542255 is an apocalyptic number.

123542255 is a deficient number, since it is larger than the sum of its proper divisors (24708457).

123542255 is an equidigital number, since it uses as much as digits as its factorization.

123542255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24708456.

The product of its digits is 12000, while the sum is 29.

The square root of 123542255 is about 11114.9563651865. The cubic root of 123542255 is about 498.0487350358.

Adding to 123542255 its reverse (552245321), we get a palindrome (675787576).

The spelling of 123542255 in words is "one hundred twenty-three million, five hundred forty-two thousand, two hundred fifty-five".