122012645 has 8 divisors (see below), whose sum is σ = 146570904. Its totient is φ = 97506304.

The previous prime is 122012641. The next prime is 122012651. The reversal of 122012645 is 546210221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8099716 + 113912929 = 2846^2 + 10673^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 122012645 - 2² = 122012641 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 122012645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122012641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7604 + ... + 17373.

It is an arithmetic number, because the mean of its divisors is an integer number (18321363).

Almost surely, 2^122012645 is an apocalyptic number.

It is an amenable number.

122012645 is a deficient number, since it is larger than the sum of its proper divisors (24558259).

122012645 is an equidigital number, since it uses as much as digits as its factorization.

122012645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25959.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 122012645 is about 11045.9334146101. The cubic root of 122012645 is about 495.9847010651.

Adding to 122012645 its reverse (546210221), we get a palindrome (668222866).

The spelling of 122012645 in words is "one hundred twenty-two million, twelve thousand, six hundred forty-five".