120724261 has 16 divisors (see below), whose sum is σ = 144391168. Its totient is φ = 98755200.

The previous prime is 120724231. The next prime is 120724277. The reversal of 120724261 is 162427021.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120724261 is a prime.

It is a super-2 number, since 2×120724261² = 29148694387992242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120724231) 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 15 ways as a sum of consecutive naturals, for example, 12031 + ... + 19651.

It is an arithmetic number, because the mean of its divisors is an integer number (9024448).

Almost surely, 2^120724261 is an apocalyptic number.

It is an amenable number.

120724261 is a deficient number, since it is larger than the sum of its proper divisors (23666907).

120724261 is an equidigital number, since it uses as much as digits as its factorization.

120724261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7732.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 120724261 is about 10987.4592604478. The cubic root of 120724261 is about 494.2327480440.

The spelling of 120724261 in words is "one hundred twenty million, seven hundred twenty-four thousand, two hundred sixty-one".