221875923 has 8 divisors (see below), whose sum is σ = 300001536. Its totient is φ = 145833800.

The previous prime is 221875921. The next prime is 221875987. The reversal of 221875923 is 329578122.

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 221875923 - 2¹ = 221875921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221875921) 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, 520623 + ... + 521048.

It is an arithmetic number, because the mean of its divisors is an integer number (37500192).

Almost surely, 2^221875923 is an apocalyptic number.

221875923 is a deficient number, since it is larger than the sum of its proper divisors (78125613).

221875923 is a wasteful number, since it uses less digits than its factorization.

221875923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041745.

The product of its digits is 60480, while the sum is 39.

The square root of 221875923 is about 14895.5000923098. The cubic root of 221875923 is about 605.3920669756.

The spelling of 221875923 in words is "two hundred twenty-one million, eight hundred seventy-five thousand, nine hundred twenty-three".