123125045 has 8 divisors (see below), whose sum is σ = 148120920. Its totient is φ = 98252800.

The previous prime is 123124993. The next prime is 123125053. The reversal of 123125045 is 540521321.

It can be written as a sum of positive squares in 4 ways, for example, as 84511249 + 38613796 = 9193^2 + 6214^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123125045 - 2¹⁰ = 123124021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123125045.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28700 + ... + 32709.

It is an arithmetic number, because the mean of its divisors is an integer number (18515115).

Almost surely, 2^123125045 is an apocalyptic number.

It is an amenable number.

123125045 is a deficient number, since it is larger than the sum of its proper divisors (24995875).

123125045 is an equidigital number, since it uses as much as digits as its factorization.

123125045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61815.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 123125045 is about 11096.1725383125. The cubic root of 123125045 is about 497.4874553877.

Adding to 123125045 its reverse (540521321), we get a palindrome (663646366).

The spelling of 123125045 in words is "one hundred twenty-three million, one hundred twenty-five thousand, forty-five".