122693645 has 4 divisors (see below), whose sum is σ = 147232380. Its totient is φ = 98154912.

The previous prime is 122693617. The next prime is 122693647. The reversal of 122693645 is 546396221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 56580484 + 66113161 = 7522^2 + 8131^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122693645 is a prime.

It is a super-3 number, since 3×122693645³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122693599 and 122693608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122693647) 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, 12269360 + ... + 12269369.

It is an arithmetic number, because the mean of its divisors is an integer number (36808095).

Almost surely, 2^122693645 is an apocalyptic number.

It is an amenable number.

122693645 is a deficient number, since it is larger than the sum of its proper divisors (24538735).

122693645 is an equidigital number, since it uses as much as digits as its factorization.

122693645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24538734.

The product of its digits is 77760, while the sum is 38.

The square root of 122693645 is about 11076.7163455602. The cubic root of 122693645 is about 496.9057507438.

The spelling of 122693645 in words is "one hundred twenty-two million, six hundred ninety-three thousand, six hundred forty-five".