120636445 has 16 divisors (see below), whose sum is σ = 146522880. Its totient is φ = 95344704.

The previous prime is 120636443. The next prime is 120636479. The reversal of 120636445 is 544636021.

It is a cyclic number.

It is not a de Polignac number, because 120636445 - 2¹ = 120636443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120636443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187294 + ... + 187936.

It is an arithmetic number, because the mean of its divisors is an integer number (9157680).

Almost surely, 2^120636445 is an apocalyptic number.

It is an amenable number.

120636445 is a deficient number, since it is larger than the sum of its proper divisors (25886435).

120636445 is a wasteful number, since it uses less digits than its factorization.

120636445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 120636445 is about 10983.4623411746. The cubic root of 120636445 is about 494.1128824084.

The spelling of 120636445 in words is "one hundred twenty million, six hundred thirty-six thousand, four hundred forty-five".