220771461 has 16 divisors (see below), whose sum is σ = 305847360. Its totient is φ = 141482880.

The previous prime is 220771459. The next prime is 220771471. The reversal of 220771461 is 164177022.

It is not a de Polignac number, because 220771461 - 2¹ = 220771459 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220771471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14826 + ... + 25716.

It is an arithmetic number, because the mean of its divisors is an integer number (19115460).

Almost surely, 2^220771461 is an apocalyptic number.

It is an amenable number.

220771461 is a deficient number, since it is larger than the sum of its proper divisors (85075899).

220771461 is a wasteful number, since it uses less digits than its factorization.

220771461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11156.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 220771461 is about 14858.3801607039. The cubic root of 220771461 is about 604.3858814011.

The spelling of 220771461 in words is "two hundred twenty million, seven hundred seventy-one thousand, four hundred sixty-one".