220136542 has 16 divisors (see below), whose sum is σ = 344881152. Its totient is φ = 105185080.

The previous prime is 220136531. The next prime is 220136551. The reversal of 220136542 is 245631022.

220136542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83667 + ... + 86257.

It is an arithmetic number, because the mean of its divisors is an integer number (21555072).

Almost surely, 2^220136542 is an apocalyptic number.

220136542 is a deficient number, since it is larger than the sum of its proper divisors (124744610).

220136542 is a wasteful number, since it uses less digits than its factorization.

220136542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4463.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 220136542 is about 14836.9990901125. Note that the first 3 decimals coincide. The cubic root of 220136542 is about 603.8059384892.

Adding to 220136542 its reverse (245631022), we get a palindrome (465767564).

The spelling of 220136542 in words is "two hundred twenty million, one hundred thirty-six thousand, five hundred forty-two".