1026147 has 4 divisors (see below), whose sum is σ = 1368200. Its totient is φ = 684096.

The previous prime is 1026143. The next prime is 1026167. The reversal of 1026147 is 7416201.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1026147 - 2² = 1026143 is a prime.

It is a D-number.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1026143) 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, 171022 + ... + 171027.

It is an arithmetic number, because the mean of its divisors is an integer number (342050).

2^1026147 is an apocalyptic number.

1026147 is a deficient number, since it is larger than the sum of its proper divisors (342053).

1026147 is an equidigital number, since it uses as much as digits as its factorization.

1026147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342052.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 1026147 is about 1012.9891411067. The cubic root of 1026147 is about 100.8640788393.

The spelling of 1026147 in words is "one million, twenty-six thousand, one hundred forty-seven".