1205142 has 16 divisors (see below), whose sum is σ = 2421360. Its totient is φ = 399872.

The previous prime is 1205123. The next prime is 1205159. The reversal of 1205142 is 2415021.

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, 1834 + ... + 2402.

It is an arithmetic number, because the mean of its divisors is an integer number (151335).

2^1205142 is an apocalyptic number.

1205142 is an abundant number, since it is smaller than the sum of its proper divisors (1216218).

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

1205142 is a wasteful number, since it uses less digits than its factorization.

1205142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 1205142 is about 1097.7895973273. The cubic root of 1205142 is about 106.4174237017.

The spelling of 1205142 in words is "one million, two hundred five thousand, one hundred forty-two".