1147942 has 16 divisors (see below), whose sum is σ = 1920240. Its totient is φ = 511488.

The previous prime is 1147931. The next prime is 1147969. The reversal of 1147942 is 2497411.

It is a self number, because there is not a number n which added to its sum of digits gives 1147942.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243 + ... + 1534.

It is an arithmetic number, because the mean of its divisors is an integer number (120015).

2^1147942 is an apocalyptic number.

1147942 is a deficient number, since it is larger than the sum of its proper divisors (772298).

1147942 is a wasteful number, since it uses less digits than its factorization.

1147942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1815.

The product of its digits is 2016, while the sum is 28.

The square root of 1147942 is about 1071.4205523509. The cubic root of 1147942 is about 104.7064210398.

The spelling of 1147942 in words is "one million, one hundred forty-seven thousand, nine hundred forty-two".