1147242 has 16 divisors (see below), whose sum is σ = 2305152. Its totient is φ = 380640.

The previous prime is 1147231. The next prime is 1147243. The reversal of 1147242 is 2427411.

It is a happy number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1147243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1942 + ... + 2462.

It is an arithmetic number, because the mean of its divisors is an integer number (144072).

2^1147242 is an apocalyptic number.

1147242 is an abundant number, since it is smaller than the sum of its proper divisors (1157910).

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

1147242 is a wasteful number, since it uses less digits than its factorization.

1147242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893.

The product of its digits is 448, while the sum is 21.

The square root of 1147242 is about 1071.0938334245. The cubic root of 1147242 is about 104.6851338442.

The spelling of 1147242 in words is "one million, one hundred forty-seven thousand, two hundred forty-two".