891142 has 16 divisors (see below), whose sum is σ = 1557792. Its totient is φ = 374400.

The previous prime is 891133. The next prime is 891151. The reversal of 891142 is 241198.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (891133) and next prime (891151).

It is a congruent number.

It is an unprimeable number.

891142 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142 + ... + 1342.

It is an arithmetic number, because the mean of its divisors is an integer number (97362).

2⁸⁹¹¹⁴² is an apocalyptic number.

891142 is a deficient number, since it is larger than the sum of its proper divisors (666650).

891142 is a wasteful number, since it uses less digits than its factorization.

891142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1263.

The product of its digits is 576, while the sum is 25.

The square root of 891142 is about 944.0031779608. The cubic root of 891142 is about 96.2311415237.

The spelling of 891142 in words is "eight hundred ninety-one thousand, one hundred forty-two".