1565142 has 8 divisors (see below), whose sum is σ = 3130296. Its totient is φ = 521712.

The previous prime is 1565141. The next prime is 1565149. The reversal of 1565142 is 2415651.

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

1565142 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1565141) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 130423 + ... + 130434.

It is an arithmetic number, because the mean of its divisors is an integer number (391287).

2^1565142 is an apocalyptic number.

1565142 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.

1565142 is a wasteful number, since it uses less digits than its factorization.

1565142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260862.

The product of its digits is 1200, while the sum is 24.

The square root of 1565142 is about 1251.0563536468. The cubic root of 1565142 is about 116.1050870930.

The spelling of 1565142 in words is "one million, five hundred sixty-five thousand, one hundred forty-two".