123625217 has 4 divisors (see below), whose sum is σ = 123668400. Its totient is φ = 123582036.

The previous prime is 123625213. The next prime is 123625219. The reversal of 123625217 is 712526321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 123625217 - 2² = 123625213 is a prime.

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 123625217.

It is not an unprimeable number, because it can be changed into a prime (123625213) 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, 16967 + ... + 23132.

It is an arithmetic number, because the mean of its divisors is an integer number (30917100).

Almost surely, 2^123625217 is an apocalyptic number.

It is an amenable number.

123625217 is a deficient number, since it is larger than the sum of its proper divisors (43183).

123625217 is an equidigital number, since it uses as much as digits as its factorization.

123625217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43182.

The product of its digits is 5040, while the sum is 29.

The square root of 123625217 is about 11118.6877373186. The cubic root of 123625217 is about 498.1601945351.

The spelling of 123625217 in words is "one hundred twenty-three million, six hundred twenty-five thousand, two hundred seventeen".