120724005 has 32 divisors (see below), whose sum is σ = 208074240. Its totient is φ = 59572800.

The previous prime is 120724003. The next prime is 120724027. The reversal of 120724005 is 500427021.

It is not a de Polignac number, because 120724005 - 2¹ = 120724003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120724003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7330 + ... + 17180.

It is an arithmetic number, because the mean of its divisors is an integer number (6502320).

Almost surely, 2^120724005 is an apocalyptic number.

120724005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120724005 is a deficient number, since it is larger than the sum of its proper divisors (87350235).

120724005 is a wasteful number, since it uses less digits than its factorization.

120724005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9921.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 120724005 is about 10987.4476107966. The cubic root of 120724005 is about 494.2323986978.

The spelling of 120724005 in words is "one hundred twenty million, seven hundred twenty-four thousand, five".