1072305 has 48 divisors (see below), whose sum is σ = 2108160. Its totient is φ = 516672.

The previous prime is 1072301. The next prime is 1072327. The reversal of 1072305 is 5032701.

It is not a de Polignac number, because 1072305 - 2² = 1072301 is a prime.

It is a super-2 number, since 2×1072305² = 2299676026050, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (1072301) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22792 + ... + 22838.

It is an arithmetic number, because the mean of its divisors is an integer number (43920).

2^1072305 is an apocalyptic number.

1072305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1072305 is a deficient number, since it is larger than the sum of its proper divisors (1035855).

1072305 is a wasteful number, since it uses less digits than its factorization.

1072305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87 (or 68 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 1072305 is about 1035.5216076934. The cubic root of 1072305 is about 102.3543042065.

The spelling of 1072305 in words is "one million, seventy-two thousand, three hundred five".