123641276 has 12 divisors (see below), whose sum is σ = 236042520. Its totient is φ = 56200560.

The previous prime is 123641263. The next prime is 123641279. The reversal of 123641276 is 672146321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123641279) 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, 1404971 + ... + 1405058.

It is an arithmetic number, because the mean of its divisors is an integer number (19670210).

Almost surely, 2^123641276 is an apocalyptic number.

It is an amenable number.

123641276 is a deficient number, since it is larger than the sum of its proper divisors (112401244).

123641276 is a wasteful number, since it uses less digits than its factorization.

123641276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2810044 (or 2810042 counting only the distinct ones).

The product of its digits is 12096, while the sum is 32.

The square root of 123641276 is about 11119.4098764278. The cubic root of 123641276 is about 498.1817640508.

Adding to 123641276 its reverse (672146321), we get a palindrome (795787597).

The spelling of 123641276 in words is "one hundred twenty-three million, six hundred forty-one thousand, two hundred seventy-six".