1147642 has 8 divisors (see below), whose sum is σ = 1729332. Its totient is φ = 571200.

The previous prime is 1147639. The next prime is 1147669. The reversal of 1147642 is 2467411.

It can be written as a sum of positive squares in 2 ways, for example, as 1079521 + 68121 = 1039^2 + 261^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 709 + ... + 1672.

2^1147642 is an apocalyptic number.

1147642 is a deficient number, since it is larger than the sum of its proper divisors (581690).

1147642 is a wasteful number, since it uses less digits than its factorization.

1147642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2624.

The product of its digits is 1344, while the sum is 25.

The square root of 1147642 is about 1071.2805421550. The cubic root of 1147642 is about 104.6972990159.

The spelling of 1147642 in words is "one million, one hundred forty-seven thousand, six hundred forty-two".