2231546 has 4 divisors (see below), whose sum is σ = 3347322. Its totient is φ = 1115772.

The previous prime is 2231533. The next prime is 2231587. The reversal of 2231546 is 6451322.

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

It can be written as a sum of positive squares in only one way, i.e., 1661521 + 570025 = 1289^2 + 755^2 .

It is a super-3 number, since 3×2231546³ = 33337941911313478008, which contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557885 + ... + 557888.

2^2231546 is an apocalyptic number.

2231546 is a deficient number, since it is larger than the sum of its proper divisors (1115776).

2231546 is a wasteful number, since it uses less digits than its factorization.

2231546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115775.

The product of its digits is 1440, while the sum is 23.

The square root of 2231546 is about 1493.8360017084. The cubic root of 2231546 is about 130.6778401640.

Adding to 2231546 its reverse (6451322), we get a palindrome (8682868).

The spelling of 2231546 in words is "two million, two hundred thirty-one thousand, five hundred forty-six".