2016375281 has 4 divisors (see below), whose sum is σ = 2016667200. Its totient is φ = 2016083364.

The previous prime is 2016375271. The next prime is 2016375289. The reversal of 2016375281 is 1825736102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2016375281 - 2¹⁸ = 2016113137 is a prime.

It is a super-2 number, since 2×2016375281² = 8131538547655657922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2016375289) 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, 135341 + ... + 149498.

It is an arithmetic number, because the mean of its divisors is an integer number (504166800).

Almost surely, 2^2016375281 is an apocalyptic number.

It is an amenable number.

2016375281 is a deficient number, since it is larger than the sum of its proper divisors (291919).

2016375281 is an equidigital number, since it uses as much as digits as its factorization.

2016375281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291918.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 2016375281 is about 44904.0675329084. The cubic root of 2016375281 is about 1263.3503012335.

The spelling of 2016375281 in words is "two billion, sixteen million, three hundred seventy-five thousand, two hundred eighty-one".