220691351 has 8 divisors (see below), whose sum is σ = 229528464. Its totient is φ = 212022720.

The previous prime is 220691333. The next prime is 220691353. The reversal of 220691351 is 153196022.

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 220691351 - 2⁶ = 220691287 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 (220691353) 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, 39446 + ... + 44691.

It is an arithmetic number, because the mean of its divisors is an integer number (28691058).

Almost surely, 2^220691351 is an apocalyptic number.

220691351 is a deficient number, since it is larger than the sum of its proper divisors (8837113).

220691351 is an equidigital number, since it uses as much as digits as its factorization.

220691351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84241.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 220691351 is about 14855.6841309985. The cubic root of 220691351 is about 604.3127692784.

The spelling of 220691351 in words is "two hundred twenty million, six hundred ninety-one thousand, three hundred fifty-one".