220924139 has 8 divisors (see below), whose sum is σ = 222354720. Its totient is φ = 219498496.

The previous prime is 220924103. The next prime is 220924159. The reversal of 220924139 is 931429022.

220924139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220924139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220924159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128417 + ... + 130125.

It is an arithmetic number, because the mean of its divisors is an integer number (27794340).

Almost surely, 2^220924139 is an apocalyptic number.

220924139 is a deficient number, since it is larger than the sum of its proper divisors (1430581).

220924139 is a wasteful number, since it uses less digits than its factorization.

220924139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2469.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 220924139 is about 14863.5170467827. The cubic root of 220924139 is about 604.5251735053.

The spelling of 220924139 in words is "two hundred twenty million, nine hundred twenty-four thousand, one hundred thirty-nine".