220154042 has 4 divisors (see below), whose sum is σ = 330231066. Its totient is φ = 110077020.

The previous prime is 220154041. The next prime is 220154093. The reversal of 220154042 is 240451022.

It is a happy number.

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., 136632721 + 83521321 = 11689^2 + 9139^2 .

It is not an unprimeable number, because it can be changed into a prime (220154041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55038509 + ... + 55038512.

Almost surely, 2^220154042 is an apocalyptic number.

220154042 is a deficient number, since it is larger than the sum of its proper divisors (110077024).

220154042 is a wasteful number, since it uses less digits than its factorization.

220154042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110077023.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 220154042 is about 14837.5888202902. The cubic root of 220154042 is about 603.8219381408.

The spelling of 220154042 in words is "two hundred twenty million, one hundred fifty-four thousand, forty-two".