2271431 has 4 divisors (see below), whose sum is σ = 2391000. Its totient is φ = 2151864.

The previous prime is 2271427. The next prime is 2271433. The reversal of 2271431 is 1341722.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2271431 - 2² = 2271427 is a prime.

It is a super-2 number, since 2×2271431² = 10318797575522, 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 (2271433) 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, 59756 + ... + 59793.

It is an arithmetic number, because the mean of its divisors is an integer number (597750).

2^2271431 is an apocalyptic number.

2271431 is a deficient number, since it is larger than the sum of its proper divisors (119569).

2271431 is a wasteful number, since it uses less digits than its factorization.

2271431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119568.

The product of its digits is 336, while the sum is 20.

The square root of 2271431 is about 1507.1267365421. The cubic root of 2271431 is about 131.4517935944.

The spelling of 2271431 in words is "two million, two hundred seventy-one thousand, four hundred thirty-one".