2101651375 has 8 divisors (see below), whose sum is σ = 2622861072. Its totient is φ = 1681321000.

The previous prime is 2101651369. The next prime is 2101651397. The reversal of 2101651375 is 5731561012.

It is not a de Polignac number, because 2101651375 - 2⁷ = 2101651247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8406481 + ... + 8406730.

It is an arithmetic number, because the mean of its divisors is an integer number (327857634).

Almost surely, 2^2101651375 is an apocalyptic number.

2101651375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2101651375 is a deficient number, since it is larger than the sum of its proper divisors (521209697).

2101651375 is an equidigital number, since it uses as much as digits as its factorization.

2101651375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16813226 (or 16813216 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 2101651375 is about 45843.7713871797. The cubic root of 2101651375 is about 1280.9147463121.

The spelling of 2101651375 in words is "two billion, one hundred one million, six hundred fifty-one thousand, three hundred seventy-five".