220405151 has 2 divisors, whose sum is σ = 220405152. Its totient is φ = 220405150.

The previous prime is 220405147. The next prime is 220405169. The reversal of 220405151 is 151504022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220405151 - 2² = 220405147 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220405951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110202575 + 110202576.

It is an arithmetic number, because the mean of its divisors is an integer number (110202576).

Almost surely, 2^220405151 is an apocalyptic number.

220405151 is a deficient number, since it is larger than the sum of its proper divisors (1).

220405151 is an equidigital number, since it uses as much as digits as its factorization.

220405151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 220405151 is about 14846.0483294377. The cubic root of 220405151 is about 604.0514252006.

Adding to 220405151 its reverse (151504022), we get a palindrome (371909173).

The spelling of 220405151 in words is "two hundred twenty million, four hundred five thousand, one hundred fifty-one".