1000147 has 4 divisors (see below), whose sum is σ = 1027216. Its totient is φ = 973080.

The previous prime is 1000133. The next prime is 1000151. The reversal of 1000147 is 7410001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7410001 = 2141 ⋅3461.

It is a cyclic number.

It is not a de Polignac number, because 1000147 - 2¹⁹ = 475859 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13479 + ... + 13552.

It is an arithmetic number, because the mean of its divisors is an integer number (256804).

2^1000147 is an apocalyptic number.

1000147 is a deficient number, since it is larger than the sum of its proper divisors (27069).

1000147 is an equidigital number, since it uses as much as digits as its factorization.

1000147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27068.

The product of its (nonzero) digits is 28, while the sum is 13.

The square root of 1000147 is about 1000.0734972991. The cubic root of 1000147 is about 100.0048997599.

Adding to 1000147 its reverse (7410001), we get a palindrome (8410148).

The spelling of 1000147 in words is "one million, one hundred forty-seven", and thus it is an aban number.