123646241 has 4 divisors (see below), whose sum is σ = 125742000. Its totient is φ = 121550484.

The previous prime is 123646231. The next prime is 123646249. The reversal of 123646241 is 142646321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 142646321 = 197 ⋅724093.

It is a cyclic number.

It is not a de Polignac number, because 123646241 - 2⁶ = 123646177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123646249) 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, 1047791 + ... + 1047908.

It is an arithmetic number, because the mean of its divisors is an integer number (31435500).

Almost surely, 2^123646241 is an apocalyptic number.

It is an amenable number.

123646241 is a deficient number, since it is larger than the sum of its proper divisors (2095759).

123646241 is an equidigital number, since it uses as much as digits as its factorization.

123646241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2095758.

The product of its digits is 6912, while the sum is 29.

The square root of 123646241 is about 11119.6331324374. The cubic root of 123646241 is about 498.1884323723.

The spelling of 123646241 in words is "one hundred twenty-three million, six hundred forty-six thousand, two hundred forty-one".