1075521107 has 4 divisors (see below), whose sum is σ = 1082119560. Its totient is φ = 1068922656.

The previous prime is 1075521091. The next prime is 1075521113. The reversal of 1075521107 is 7011255701.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1075521107 - 2⁴ = 1075521091 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1075521107.

It is not an unprimeable number, because it can be changed into a prime (1075521157) 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, 3298982 + ... + 3299307.

It is an arithmetic number, because the mean of its divisors is an integer number (270529890).

Almost surely, 2^1075521107 is an apocalyptic number.

1075521107 is a deficient number, since it is larger than the sum of its proper divisors (6598453).

1075521107 is an equidigital number, since it uses as much as digits as its factorization.

1075521107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6598452.

The product of its (nonzero) digits is 2450, while the sum is 29.

The square root of 1075521107 is about 32795.1384659373. The cubic root of 1075521107 is about 1024.5653066938.

Adding to 1075521107 its reverse (7011255701), we get a palindrome (8086776808).

The spelling of 1075521107 in words is "one billion, seventy-five million, five hundred twenty-one thousand, one hundred seven".