1025147 has 2 divisors, whose sum is σ = 1025148. Its totient is φ = 1025146.

The previous prime is 1025137. The next prime is 1025149. The reversal of 1025147 is 7415201.

It is a strong prime.

It is an emirp because it is prime and its reverse (7415201) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1025147 is a prime.

Together with 1025149, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1025149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512573 + 512574.

It is an arithmetic number, because the mean of its divisors is an integer number (512574).

2^1025147 is an apocalyptic number.

1025147 is a deficient number, since it is larger than the sum of its proper divisors (1).

1025147 is an equidigital number, since it uses as much as digits as its factorization.

1025147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 1025147 is about 1012.4954320885. The cubic root of 1025147 is about 100.8313035283.

The spelling of 1025147 in words is "one million, twenty-five thousand, one hundred forty-seven".