2272131 has 10 divisors (see below), whose sum is σ = 3394292. Its totient is φ = 1514700.

The previous prime is 2272129. The next prime is 2272141. The reversal of 2272131 is 1312722.

It is not a de Polignac number, because 2272131 - 2¹ = 2272129 is a prime.

It is a super-2 number, since 2×2272131² = 10325158562322, which contains 22 as substring.

It is a Duffinian number.

2272131 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2272141) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 13945 + ... + 14106.

2^2272131 is an apocalyptic number.

2272131 is a deficient number, since it is larger than the sum of its proper divisors (1122161).

2272131 is an equidigital number, since it uses as much as digits as its factorization.

2272131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28063 (or 28054 counting only the distinct ones).

The product of its digits is 168, while the sum is 18.

The square root of 2272131 is about 1507.3589486250. The cubic root of 2272131 is about 131.4652956268.

Adding to 2272131 its reverse (1312722), we get a palindrome (3584853).

The spelling of 2272131 in words is "two million, two hundred seventy-two thousand, one hundred thirty-one".