220349951 has 2 divisors, whose sum is σ = 220349952. Its totient is φ = 220349950.

The previous prime is 220349939. The next prime is 220349963. The reversal of 220349951 is 159943022.

It is a balanced prime because it is at equal distance from previous prime (220349939) and next prime (220349963).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220349951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220349981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110174975 + 110174976.

It is an arithmetic number, because the mean of its divisors is an integer number (110174976).

Almost surely, 2^220349951 is an apocalyptic number.

220349951 is a deficient number, since it is larger than the sum of its proper divisors (1).

220349951 is an equidigital number, since it uses as much as digits as its factorization.

220349951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 220349951 is about 14844.1891324518. The cubic root of 220349951 is about 604.0009931931. Note that the first 3 decimals are identical.

The spelling of 220349951 in words is "two hundred twenty million, three hundred forty-nine thousand, nine hundred fifty-one".