2945486281 has 4 divisors (see below), whose sum is σ = 2945994192. Its totient is φ = 2944978372.

The previous prime is 2945486233. The next prime is 2945486303. The reversal of 2945486281 is 1826845492.

2945486281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2945486281 - 2⁹ = 2945485769 is a prime.

It is a super-2 number, since 2×2945486281² = 17351778863118421922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2945486221) 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, 245155 + ... + 256888.

It is an arithmetic number, because the mean of its divisors is an integer number (736498548).

Almost surely, 2^2945486281 is an apocalyptic number.

It is an amenable number.

2945486281 is a deficient number, since it is larger than the sum of its proper divisors (507911).

2945486281 is an equidigital number, since it uses as much as digits as its factorization.

2945486281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507910.

The product of its digits is 1105920, while the sum is 49.

The square root of 2945486281 is about 54272.3343979232. The cubic root of 2945486281 is about 1433.4602951475.

The spelling of 2945486281 in words is "two billion, nine hundred forty-five million, four hundred eighty-six thousand, two hundred eighty-one".