120722647 has 4 divisors (see below), whose sum is σ = 120745080. Its totient is φ = 120700216.

The previous prime is 120722633. The next prime is 120722671. The reversal of 120722647 is 746227021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 746227021 = 83 ⋅8990687.

It is a cyclic number.

It is not a de Polignac number, because 120722647 - 2⁷ = 120722519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120722047) 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, 2229 + ... + 15697.

It is an arithmetic number, because the mean of its divisors is an integer number (30186270).

Almost surely, 2^120722647 is an apocalyptic number.

120722647 is a deficient number, since it is larger than the sum of its proper divisors (22433).

120722647 is an equidigital number, since it uses as much as digits as its factorization.

120722647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22432.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 120722647 is about 10987.3858128310. The cubic root of 120722647 is about 494.2305455173.

Adding to 120722647 its reverse (746227021), we get a palindrome (866949668).

The spelling of 120722647 in words is "one hundred twenty million, seven hundred twenty-two thousand, six hundred forty-seven".