220246142 has 4 divisors (see below), whose sum is σ = 330369216. Its totient is φ = 110123070.

The previous prime is 220246139. The next prime is 220246177. The reversal of 220246142 is 241642022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 241642022 = 2 ⋅120821011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55061534 + ... + 55061537.

It is an arithmetic number, because the mean of its divisors is an integer number (82592304).

Almost surely, 2^220246142 is an apocalyptic number.

220246142 is a deficient number, since it is larger than the sum of its proper divisors (110123074).

220246142 is a wasteful number, since it uses less digits than its factorization.

220246142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110123073.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 220246142 is about 14840.6920997641. The cubic root of 220246142 is about 603.9061280514.

Adding to 220246142 its reverse (241642022), we get a palindrome (461888164).

The spelling of 220246142 in words is "two hundred twenty million, two hundred forty-six thousand, one hundred forty-two".