220091047 has 8 divisors (see below), whose sum is σ = 243683712. Its totient is φ = 197095800.

The previous prime is 220091023. The next prime is 220091051. The reversal of 220091047 is 740190022.

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

It is not a de Polignac number, because 220091047 - 2¹⁹ = 219566759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220091057) 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, 148579 + ... + 150052.

It is an arithmetic number, because the mean of its divisors is an integer number (30460464).

Almost surely, 2^220091047 is an apocalyptic number.

220091047 is a deficient number, since it is larger than the sum of its proper divisors (23592665).

220091047 is a wasteful number, since it uses less digits than its factorization.

220091047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298709.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 220091047 is about 14835.4658504544. The cubic root of 220091047 is about 603.7643399984.

The spelling of 220091047 in words is "two hundred twenty million, ninety-one thousand, forty-seven".