2913281 has 8 divisors (see below), whose sum is σ = 3339840. Its totient is φ = 2489328.

The previous prime is 2913271. The next prime is 2913319. The reversal of 2913281 is 1823192.

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

It is a cyclic number.

It is not a de Polignac number, because 2913281 - 2¹⁰ = 2912257 is a prime.

It is a super-2 number, since 2×2913281² = 16974412369922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2913281.

It is not an unprimeable number, because it can be changed into a prime (2913241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3755 + ... + 4463.

It is an arithmetic number, because the mean of its divisors is an integer number (417480).

2^2913281 is an apocalyptic number.

It is an amenable number.

2913281 is a deficient number, since it is larger than the sum of its proper divisors (426559).

2913281 is an equidigital number, since it uses as much as digits as its factorization.

2913281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1303.

The product of its digits is 864, while the sum is 26.

The square root of 2913281 is about 1706.8336181362. The cubic root of 2913281 is about 142.8216761003.

The spelling of 2913281 in words is "two million, nine hundred thirteen thousand, two hundred eighty-one".