1069945 has 4 divisors (see below), whose sum is σ = 1283940. Its totient is φ = 855952.

The previous prime is 1069933. The next prime is 1069949. The reversal of 1069945 is 5499601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5499601 = 73 ⋅75337.

It can be written as a sum of positive squares in 2 ways, for example, as 724201 + 345744 = 851^2 + 588^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1069945 is a prime.

It is a super-2 number, since 2×1069945² = 2289564606050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1069945.

It is not an unprimeable number, because it can be changed into a prime (1069949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106990 + ... + 106999.

It is an arithmetic number, because the mean of its divisors is an integer number (320985).

2^1069945 is an apocalyptic number.

It is an amenable number.

1069945 is a deficient number, since it is larger than the sum of its proper divisors (213995).

1069945 is an equidigital number, since it uses as much as digits as its factorization.

1069945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213994.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 1069945 is about 1034.3814576838. The cubic root of 1069945 is about 102.2791596703.

The spelling of 1069945 in words is "one million, sixty-nine thousand, nine hundred forty-five".