220151242 has 4 divisors (see below), whose sum is σ = 330226866. Its totient is φ = 110075620.

The previous prime is 220151237. The next prime is 220151287. The reversal of 220151242 is 242151022.

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

It can be written as a sum of positive squares in only one way, i.e., 155975121 + 64176121 = 12489^2 + 8011^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55037809 + ... + 55037812.

Almost surely, 2^220151242 is an apocalyptic number.

220151242 is a deficient number, since it is larger than the sum of its proper divisors (110075624).

220151242 is a wasteful number, since it uses less digits than its factorization.

220151242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110075623.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 220151242 is about 14837.4944650369. The cubic root of 220151242 is about 603.8193782535.

The spelling of 220151242 in words is "two hundred twenty million, one hundred fifty-one thousand, two hundred forty-two".