123641652 has 48 divisors (see below), whose sum is σ = 302141952. Its totient is φ = 39277920.

The previous prime is 123641647. The next prime is 123641657. The reversal of 123641652 is 256146321.

It is an interprime number because it is at equal distance from previous prime (123641647) and next prime (123641657).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123641657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95127 + ... + 96417.

It is an arithmetic number, because the mean of its divisors is an integer number (6294624).

Almost surely, 2^123641652 is an apocalyptic number.

123641652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123641652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151070976).

123641652 is an abundant number, since it is smaller than the sum of its proper divisors (178500300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123641652 is a wasteful number, since it uses less digits than its factorization.

123641652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1668 (or 1666 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 123641652 is about 11119.4267837870. The cubic root of 123641652 is about 498.1822690498.

Adding to 123641652 its reverse (256146321), we get a palindrome (379787973).

The spelling of 123641652 in words is "one hundred twenty-three million, six hundred forty-one thousand, six hundred fifty-two".