867142 has 4 divisors (see below), whose sum is σ = 1300716. Its totient is φ = 433570.

The previous prime is 867131. The next prime is 867143. The reversal of 867142 is 241768.

It is a semiprime because it is the product of two primes.

It is a plaindrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 867142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (867143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216784 + ... + 216787.

It is an arithmetic number, because the mean of its divisors is an integer number (325179).

2⁸⁶⁷¹⁴² is an apocalyptic number.

867142 is a deficient number, since it is larger than the sum of its proper divisors (433574).

867142 is a wasteful number, since it uses less digits than its factorization.

867142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433573.

The product of its digits is 2688, while the sum is 28.

The square root of 867142 is about 931.2045962086. The cubic root of 867142 is about 95.3593774780.

The spelling of 867142 in words is "eight hundred sixty-seven thousand, one hundred forty-two".