123045256 has 16 divisors (see below), whose sum is σ = 231920640. Its totient is φ = 61199760.

The previous prime is 123045253. The next prime is 123045271. The reversal of 123045256 is 652540321.

It is not an unprimeable number, because it can be changed into a prime (123045253) 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, 38736 + ... + 41791.

It is an arithmetic number, because the mean of its divisors is an integer number (14495040).

Almost surely, 2^123045256 is an apocalyptic number.

It is an amenable number.

123045256 is a deficient number, since it is larger than the sum of its proper divisors (108875384).

123045256 is a wasteful number, since it uses less digits than its factorization.

123045256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80724 (or 80720 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 123045256 is about 11092.5766168190. The cubic root of 123045256 is about 497.3799695278.

Adding to 123045256 its reverse (652540321), we get a palindrome (775585577).

The spelling of 123045256 in words is "one hundred twenty-three million, forty-five thousand, two hundred fifty-six".