123641125 has 16 divisors (see below), whose sum is σ = 157899456. Its totient is φ = 96608400.

The previous prime is 123641101. The next prime is 123641129. The reversal of 123641125 is 521146321.

It is a happy number.

It is not a de Polignac number, because 123641125 - 2¹⁹ = 123116837 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123641125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123641129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6127 + ... + 16876.

It is an arithmetic number, because the mean of its divisors is an integer number (9868716).

Almost surely, 2^123641125 is an apocalyptic number.

It is an amenable number.

123641125 is a deficient number, since it is larger than the sum of its proper divisors (34258331).

123641125 is an equidigital number, since it uses as much as digits as its factorization.

123641125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23061 (or 23051 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 123641125 is about 11119.4030864970. The cubic root of 123641125 is about 498.1815612451.

Adding to 123641125 its reverse (521146321), we get a palindrome (644787446).

The spelling of 123641125 in words is "one hundred twenty-three million, six hundred forty-one thousand, one hundred twenty-five".