1075720345 has 16 divisors (see below), whose sum is σ = 1526146560. Its totient is φ = 712200384.

The previous prime is 1075720319. The next prime is 1075720381. The reversal of 1075720345 is 5430275701.

It is not a de Polignac number, because 1075720345 - 2¹¹ = 1075718297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1075720345.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 528897 + ... + 530926.

It is an arithmetic number, because the mean of its divisors is an integer number (95384160).

Almost surely, 2^1075720345 is an apocalyptic number.

It is an amenable number.

1075720345 is a deficient number, since it is larger than the sum of its proper divisors (450426215).

1075720345 is a wasteful number, since it uses less digits than its factorization.

1075720345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059864.

The product of its (nonzero) digits is 29400, while the sum is 34.

The square root of 1075720345 is about 32798.1759401342. The cubic root of 1075720345 is about 1024.6285689696.

The spelling of 1075720345 in words is "one billion, seventy-five million, seven hundred twenty thousand, three hundred forty-five".