911142 has 32 divisors (see below), whose sum is σ = 2073600. Its totient is φ = 296424.

The previous prime is 911129. The next prime is 911147. The reversal of 911142 is 241119.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (911147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2359 + ... + 2717.

It is an arithmetic number, because the mean of its divisors is an integer number (64800).

2⁹¹¹¹⁴² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 911142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1036800).

911142 is an abundant number, since it is smaller than the sum of its proper divisors (1162458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

911142 is a wasteful number, since it uses less digits than its factorization.

911142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417 (or 411 counting only the distinct ones).

The product of its digits is 72, while the sum is 18.

The square root of 911142 is about 954.5375843831. The cubic root of 911142 is about 96.9457307940.

The spelling of 911142 in words is "nine hundred eleven thousand, one hundred forty-two".