205142622 has 8 divisors (see below), whose sum is σ = 410285256. Its totient is φ = 68380872.

The previous prime is 205142617. The next prime is 205142627. The reversal of 205142622 is 226241502.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (205142617) and next prime (205142627).

It is a sphenic number, since it is the product of 3 distinct primes.

205142622 is an admirable number.

It is a super-2 number, since 2×205142622² = 84166990722069768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 205142592 and 205142601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205142627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17095213 + ... + 17095224.

It is an arithmetic number, because the mean of its divisors is an integer number (51285657).

Almost surely, 2^205142622 is an apocalyptic number.

205142622 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205142622 is a wasteful number, since it uses less digits than its factorization.

205142622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34190442.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 205142622 is about 14322.8007735917. The cubic root of 205142622 is about 589.7735624406.

The spelling of 205142622 in words is "two hundred five million, one hundred forty-two thousand, six hundred twenty-two".