120722605 has 8 divisors (see below), whose sum is σ = 147600792. Its totient is φ = 94755648.

The previous prime is 120722603. The next prime is 120722633. The reversal of 120722605 is 506227021.

It can be written as a sum of positive squares in 4 ways, for example, as 12292036 + 108430569 = 3506^2 + 10413^2 .

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 120722605 - 2¹ = 120722603 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120722605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120722603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227514 + ... + 228043.

It is an arithmetic number, because the mean of its divisors is an integer number (18450099).

Almost surely, 2^120722605 is an apocalyptic number.

It is an amenable number.

120722605 is a deficient number, since it is larger than the sum of its proper divisors (26878187).

120722605 is an equidigital number, since it uses as much as digits as its factorization.

120722605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455615.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 120722605 is about 10987.3839015482. The cubic root of 120722605 is about 494.2304882023.

Adding to 120722605 its reverse (506227021), we get a palindrome (626949626).

The spelling of 120722605 in words is "one hundred twenty million, seven hundred twenty-two thousand, six hundred five".