1072147 has 2 divisors, whose sum is σ = 1072148. Its totient is φ = 1072146.

The previous prime is 1072133. The next prime is 1072157. The reversal of 1072147 is 7412701.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1072147 is a prime.

It is a super-2 number, since 2×1072147² = 2298998379218, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (1072157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536073 + 536074.

It is an arithmetic number, because the mean of its divisors is an integer number (536074).

2^1072147 is an apocalyptic number.

1072147 is a deficient number, since it is larger than the sum of its proper divisors (1).

1072147 is an equidigital number, since it uses as much as digits as its factorization.

1072147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 1072147 is about 1035.4453148284. The cubic root of 1072147 is about 102.3492767891.

Adding to 1072147 its reverse (7412701), we get a palindrome (8484848).

The spelling of 1072147 in words is "one million, seventy-two thousand, one hundred forty-seven".