123125207 has 2 divisors, whose sum is σ = 123125208. Its totient is φ = 123125206.

The previous prime is 123125179. The next prime is 123125251. The reversal of 123125207 is 702521321.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123125207 - 2¹² = 123121111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123125257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61562603 + 61562604.

It is an arithmetic number, because the mean of its divisors is an integer number (61562604).

Almost surely, 2^123125207 is an apocalyptic number.

123125207 is a deficient number, since it is larger than the sum of its proper divisors (1).

123125207 is an equidigital number, since it uses as much as digits as its factorization.

123125207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 123125207 is about 11096.1798381245. The cubic root of 123125207 is about 497.4876735749.

Adding to 123125207 its reverse (702521321), we get a palindrome (825646528).

The spelling of 123125207 in words is "one hundred twenty-three million, one hundred twenty-five thousand, two hundred seven".