1047147 has 8 divisors (see below), whose sum is σ = 1469760. Its totient is φ = 661320.

The previous prime is 1047139. The next prime is 1047157. The reversal of 1047147 is 7417401.

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

It is not a de Polignac number, because 1047147 - 2³ = 1047139 is a prime.

1047147 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1047107) 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, 9129 + ... + 9242.

It is an arithmetic number, because the mean of its divisors is an integer number (183720).

2^1047147 is an apocalyptic number.

1047147 is a deficient number, since it is larger than the sum of its proper divisors (422613).

1047147 is a wasteful number, since it uses less digits than its factorization.

1047147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18393.

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 1047147 is about 1023.3020082068. The cubic root of 1047147 is about 101.5474957085.

The spelling of 1047147 in words is "one million, forty-seven thousand, one hundred forty-seven".