1071147 has 16 divisors (see below), whose sum is σ = 1780992. Its totient is φ = 556320.

The previous prime is 1071139. The next prime is 1071149. The reversal of 1071147 is 7411701.

It is not a de Polignac number, because 1071147 - 2³ = 1071139 is a prime.

It is a super-2 number, since 2×1071147² = 2294711791218, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1071149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2088 + ... + 2549.

It is an arithmetic number, because the mean of its divisors is an integer number (111312).

2^1071147 is an apocalyptic number.

1071147 is a deficient number, since it is larger than the sum of its proper divisors (709845).

1071147 is a wasteful number, since it uses less digits than its factorization.

1071147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4658.

The product of its (nonzero) digits is 196, while the sum is 21.

The square root of 1071147 is about 1034.9623181546. The cubic root of 1071147 is about 102.3174462305.

Adding to 1071147 its reverse (7411701), we get a palindrome (8482848).

The spelling of 1071147 in words is "one million, seventy-one thousand, one hundred forty-seven".