120724447 has 8 divisors (see below), whose sum is σ = 130037760. Its totient is φ = 111749880.

The previous prime is 120724433. The next prime is 120724469. The reversal of 120724447 is 744427021.

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 120724447 - 2¹⁵ = 120691679 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120724427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83947 + ... + 85372.

It is an arithmetic number, because the mean of its divisors is an integer number (16254720).

Almost surely, 2^120724447 is an apocalyptic number.

120724447 is a deficient number, since it is larger than the sum of its proper divisors (9313313).

120724447 is a wasteful number, since it uses less digits than its factorization.

120724447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169373.

The product of its (nonzero) digits is 12544, while the sum is 31.

The square root of 120724447 is about 10987.4677246397. The cubic root of 120724447 is about 494.2330018655.

The spelling of 120724447 in words is "one hundred twenty million, seven hundred twenty-four thousand, four hundred forty-seven".