123235841 has 4 divisors (see below), whose sum is σ = 123916884. Its totient is φ = 122554800.

The previous prime is 123235831. The next prime is 123235891. The reversal of 123235841 is 148532321.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 13719616 + 109516225 = 3704^2 + 10465^2 .

It is a cyclic number.

It is not a de Polignac number, because 123235841 - 2¹⁴ = 123219457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (123235831) 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, 340250 + ... + 340611.

It is an arithmetic number, because the mean of its divisors is an integer number (30979221).

Almost surely, 2^123235841 is an apocalyptic number.

It is an amenable number.

123235841 is a deficient number, since it is larger than the sum of its proper divisors (681043).

123235841 is an equidigital number, since it uses as much as digits as its factorization.

123235841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681042.

The product of its digits is 5760, while the sum is 29.

The square root of 123235841 is about 11101.1639479831. The cubic root of 123235841 is about 497.6366346088.

It can be divided in two parts, 1232 and 35841, that added together give a palindrome (37073).

The spelling of 123235841 in words is "one hundred twenty-three million, two hundred thirty-five thousand, eight hundred forty-one".