1071745 has 8 divisors (see below), whose sum is σ = 1304640. Its totient is φ = 845040.

The previous prime is 1071743. The next prime is 1071761. The reversal of 1071745 is 5471701.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1071745 - 2¹ = 1071743 is a prime.

It is a super-2 number, since 2×1071745² = 2297274690050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1071743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1155 + ... + 1864.

It is an arithmetic number, because the mean of its divisors is an integer number (163080).

2^1071745 is an apocalyptic number.

It is an amenable number.

1071745 is a deficient number, since it is larger than the sum of its proper divisors (232895).

1071745 is an equidigital number, since it uses as much as digits as its factorization.

1071745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3095.

The product of its (nonzero) digits is 980, while the sum is 25.

The square root of 1071745 is about 1035.2511772512. The cubic root of 1071745 is about 102.3364832845.

The spelling of 1071745 in words is "one million, seventy-one thousand, seven hundred forty-five".