805142 has 16 divisors (see below), whose sum is σ = 1315440. Its totient is φ = 367392.

The previous prime is 805121. The next prime is 805153. The reversal of 805142 is 241508.

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, 4409 + ... + 4587.

It is an arithmetic number, because the mean of its divisors is an integer number (82215).

2⁸⁰⁵¹⁴² is an apocalyptic number.

805142 is a deficient number, since it is larger than the sum of its proper divisors (510298).

805142 is a wasteful number, since it uses less digits than its factorization.

805142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 805142 is about 897.2970522631. The cubic root of 805142 is about 93.0302441426.

It can be divided in two parts, 80514 and 2, that multiplied together give a triangular number (161028 = T₅₆₇).

The spelling of 805142 in words is "eight hundred five thousand, one hundred forty-two".