870142 has 24 divisors (see below), whose sum is σ = 1637496. Its totient is φ = 343728.

The previous prime is 870137. The next prime is 870151. The reversal of 870142 is 241078.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 933 + ... + 1615.

It is an arithmetic number, because the mean of its divisors is an integer number (68229).

2⁸⁷⁰¹⁴² is an apocalyptic number.

870142 is a deficient number, since it is larger than the sum of its proper divisors (767354).

870142 is a wasteful number, since it uses less digits than its factorization.

870142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712 (or 705 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 870142 is about 932.8140221931. The cubic root of 870142 is about 95.4692206393.

The spelling of 870142 in words is "eight hundred seventy thousand, one hundred forty-two".