2897482181 has 4 divisors (see below), whose sum is σ = 3160889664. Its totient is φ = 2634074700.

The previous prime is 2897482151. The next prime is 2897482187. The reversal of 2897482181 is 1812847982.

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 2897482181 - 2¹⁰ = 2897481157 is a prime.

It is a super-2 number, since 2×2897482181² = 16790805978425033522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2897482187) 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, 131703725 + ... + 131703746.

It is an arithmetic number, because the mean of its divisors is an integer number (790222416).

Almost surely, 2^2897482181 is an apocalyptic number.

It is an amenable number.

2897482181 is a deficient number, since it is larger than the sum of its proper divisors (263407483).

2897482181 is a wasteful number, since it uses less digits than its factorization.

2897482181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263407482.

The product of its digits is 516096, while the sum is 50.

The square root of 2897482181 is about 53828.2656324723. The cubic root of 2897482181 is about 1425.6303243672.

The spelling of 2897482181 in words is "two billion, eight hundred ninety-seven million, four hundred eighty-two thousand, one hundred eighty-one".