2109371075 has 24 divisors (see below), whose sum is σ = 3062199840. Its totient is φ = 1411142400.

The previous prime is 2109371071. The next prime is 2109371081. The reversal of 2109371075 is 5701739012.

It is a happy number.

It is not a de Polignac number, because 2109371075 - 2² = 2109371071 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (2109371071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 139820 + ... + 154169.

It is an arithmetic number, because the mean of its divisors is an integer number (127591660).

Almost surely, 2^2109371075 is an apocalyptic number.

2109371075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2109371075 is a deficient number, since it is larger than the sum of its proper divisors (952828765).

2109371075 is a wasteful number, since it uses less digits than its factorization.

2109371075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294047 (or 294042 counting only the distinct ones).

The product of its (nonzero) digits is 13230, while the sum is 35.

The square root of 2109371075 is about 45927.8899471770. The cubic root of 2109371075 is about 1282.4811645516.

The spelling of 2109371075 in words is "two billion, one hundred nine million, three hundred seventy-one thousand, seventy-five".