2975281 has 8 divisors (see below), whose sum is σ = 3090920. Its totient is φ = 2861568.

The previous prime is 2975279. The next prime is 2975293. The reversal of 2975281 is 1825792.

2975281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1040400 + 1934881 = 1020^2 + 1391^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 5-Lehmer number, since φ(2975281) divides (2975281-1)⁵.

It is a cyclic number.

It is not a de Polignac number, because 2975281 - 2¹ = 2975279 is a prime.

It is a super-2 number, since 2×2975281² = 17704594057922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2975251) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3175 + ... + 4003.

It is an arithmetic number, because the mean of its divisors is an integer number (386365).

2^2975281 is an apocalyptic number.

It is an amenable number.

2975281 is a deficient number, since it is larger than the sum of its proper divisors (115639).

2975281 is an equidigital number, since it uses as much as digits as its factorization.

2975281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963.

The product of its digits is 10080, while the sum is 34.

The square root of 2975281 is about 1724.9002869731. The cubic root of 2975281 is about 143.8277421953.

The spelling of 2975281 in words is "two million, nine hundred seventy-five thousand, two hundred eighty-one".