1142984 has 8 divisors (see below), whose sum is σ = 2143110. Its totient is φ = 571488.

The previous prime is 1142971. The next prime is 1143013. The reversal of 1142984 is 4892411.

It can be written as a sum of positive squares in only one way, i.e., 770884 + 372100 = 878^2 + 610^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 15.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71429 + ... + 71444.

2^1142984 is an apocalyptic number.

It is an amenable number.

1142984 is a deficient number, since it is larger than the sum of its proper divisors (1000126).

1142984 is a wasteful number, since it uses less digits than its factorization.

1142984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142879 (or 142875 counting only the distinct ones).

The product of its digits is 2304, while the sum is 29.

The square root of 1142984 is about 1069.1042979990. The cubic root of 1142984 is about 104.5554599807. Note that the first 3 decimals are identical.

The spelling of 1142984 in words is "one million, one hundred forty-two thousand, nine hundred eighty-four".