221074713 has 24 divisors (see below), whose sum is σ = 326514240. Its totient is φ = 144087840.

The previous prime is 221074703. The next prime is 221074729. The reversal of 221074713 is 317470122.

It is a happy number.

221074713 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 221074713 - 2⁶ = 221074649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221074703) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 170598 + ... + 171888.

It is an arithmetic number, because the mean of its divisors is an integer number (13604760).

Almost surely, 2^221074713 is an apocalyptic number.

It is an amenable number.

221074713 is a deficient number, since it is larger than the sum of its proper divisors (105439527).

221074713 is a wasteful number, since it uses less digits than its factorization.

221074713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1709 (or 1706 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 221074713 is about 14868.5814050971. The cubic root of 221074713 is about 604.6624832348.

The spelling of 221074713 in words is "two hundred twenty-one million, seventy-four thousand, seven hundred thirteen".