220515151 has 4 divisors (see below), whose sum is σ = 220711600. Its totient is φ = 220318704.

The previous prime is 220515133. The next prime is 220515167. The reversal of 220515151 is 151515022.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220515151 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 (220515131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96531 + ... + 98788.

It is an arithmetic number, because the mean of its divisors is an integer number (55177900).

Almost surely, 2^220515151 is an apocalyptic number.

220515151 is a deficient number, since it is larger than the sum of its proper divisors (196449).

220515151 is a wasteful number, since it uses less digits than its factorization.

220515151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196448.

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 220515151 is about 14849.7525568610. The cubic root of 220515151 is about 604.1518986629.

The spelling of 220515151 in words is "two hundred twenty million, five hundred fifteen thousand, one hundred fifty-one".