220142445 has 16 divisors (see below), whose sum is σ = 352537920. Its totient is φ = 117305984.

The previous prime is 220142441. The next prime is 220142467. The reversal of 220142445 is 544241022.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 220142445 - 2² = 220142441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220142441) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 13057 + ... + 24713.

It is an arithmetic number, because the mean of its divisors is an integer number (22033620).

Almost surely, 2^220142445 is an apocalyptic number.

It is an amenable number.

220142445 is a deficient number, since it is larger than the sum of its proper divisors (132395475).

220142445 is a wasteful number, since it uses less digits than its factorization.

220142445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12924.

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 220142445 is about 14837.1980171460. The cubic root of 220142445 is about 603.8113354950.

Adding to 220142445 its reverse (544241022), we get a palindrome (764383467).

The spelling of 220142445 in words is "two hundred twenty million, one hundred forty-two thousand, four hundred forty-five".