208142822 has 4 divisors (see below), whose sum is σ = 312214236. Its totient is φ = 104071410.

The previous prime is 208142813. The next prime is 208142827. The reversal of 208142822 is 228241802.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 228241802 = 2 ⋅114120901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208142827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52035704 + ... + 52035707.

It is an arithmetic number, because the mean of its divisors is an integer number (78053559).

Almost surely, 2^208142822 is an apocalyptic number.

208142822 is a deficient number, since it is larger than the sum of its proper divisors (104071414).

208142822 is a wasteful number, since it uses less digits than its factorization.

208142822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104071413.

The product of its (nonzero) digits is 4096, while the sum is 29.

The square root of 208142822 is about 14427.1557141385. The cubic root of 208142822 is about 592.6347947098.

The spelling of 208142822 in words is "two hundred eight million, one hundred forty-two thousand, eight hundred twenty-two".