2270521 has 4 divisors (see below), whose sum is σ = 2476944. Its totient is φ = 2064100.

The previous prime is 2270507. The next prime is 2270531. The reversal of 2270521 is 1250722.

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 2270521 - 2⁷ = 2270393 is a prime.

It is a super-2 number, since 2×2270521² = 10310531222882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2270531) 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, 103195 + ... + 103216.

It is an arithmetic number, because the mean of its divisors is an integer number (619236).

2^2270521 is an apocalyptic number.

It is an amenable number.

2270521 is a deficient number, since it is larger than the sum of its proper divisors (206423).

2270521 is a wasteful number, since it uses less digits than its factorization.

2270521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206422.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 2270521 is about 1506.8248073349. The cubic root of 2270521 is about 131.4342368046.

The spelling of 2270521 in words is "two million, two hundred seventy thousand, five hundred twenty-one".