120812605 has 8 divisors (see below), whose sum is σ = 146604600. Its totient is φ = 95563776.

The previous prime is 120812581. The next prime is 120812623. The reversal of 120812605 is 506218021.

It can be written as a sum of positive squares in 4 ways, for example, as 26275876 + 94536729 = 5126^2 + 9723^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120812605 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120812605.

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, 135300 + ... + 136189.

It is an arithmetic number, because the mean of its divisors is an integer number (18325575).

Almost surely, 2^120812605 is an apocalyptic number.

It is an amenable number.

120812605 is a deficient number, since it is larger than the sum of its proper divisors (25791995).

120812605 is an equidigital number, since it uses as much as digits as its factorization.

120812605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271583.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 120812605 is about 10991.4787449187. The cubic root of 120812605 is about 494.3532757418.

The spelling of 120812605 in words is "one hundred twenty million, eight hundred twelve thousand, six hundred five".