122065645 has 8 divisors (see below), whose sum is σ = 157746456. Its totient is φ = 90140736.

The previous prime is 122065639. The next prime is 122065663. The reversal of 122065645 is 546560221.

It can be written as a sum of positive squares in 4 ways, for example, as 19873764 + 102191881 = 4458^2 + 10109^2 .

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 122065645 - 2³ = 122065637 is a prime.

It is a super-3 number, since 3×122065645³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 938902 + ... + 939031.

It is an arithmetic number, because the mean of its divisors is an integer number (19718307).

Almost surely, 2^122065645 is an apocalyptic number.

It is an amenable number.

122065645 is a deficient number, since it is larger than the sum of its proper divisors (35680811).

122065645 is a wasteful number, since it uses less digits than its factorization.

122065645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1877951.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 122065645 is about 11048.3322270830. The cubic root of 122065645 is about 496.0565061469.

The spelling of 122065645 in words is "one hundred twenty-two million, sixty-five thousand, six hundred forty-five".