123245045 has 64 divisors (see below), whose sum is σ = 193536000. Its totient is φ = 74652480.

The previous prime is 123245033. The next prime is 123245047. The reversal of 123245045 is 540542321.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-123245045 is a prime.

It is a super-2 number, since 2×123245045² = 30378682234104050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123245047) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 886586 + ... + 886724.

It is an arithmetic number, because the mean of its divisors is an integer number (3024000).

Almost surely, 2^123245045 is an apocalyptic number.

It is an amenable number.

123245045 is a deficient number, since it is larger than the sum of its proper divisors (70290955).

123245045 is a wasteful number, since it uses less digits than its factorization.

123245045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223 (or 209 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 123245045 is about 11101.5784913678. The cubic root of 123245045 is about 497.6490231410.

Adding to 123245045 its reverse (540542321), we get a palindrome (663787366).

The spelling of 123245045 in words is "one hundred twenty-three million, two hundred forty-five thousand, forty-five".