2231554 has 8 divisors (see below), whose sum is σ = 3604860. Its totient is φ = 1029936.

The previous prime is 2231533. The next prime is 2231587. The reversal of 2231554 is 4551322.

It can be written as a sum of positive squares in 2 ways, for example, as 1703025 + 528529 = 1305^2 + 727^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×2231554³ = 33338300458022458392, which contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42889 + ... + 42940.

2^2231554 is an apocalyptic number.

2231554 is a deficient number, since it is larger than the sum of its proper divisors (1373306).

2231554 is a wasteful number, since it uses less digits than its factorization.

2231554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85844.

The product of its digits is 1200, while the sum is 22.

The square root of 2231554 is about 1493.8386793761. The cubic root of 2231554 is about 130.6779963220.

Adding to 2231554 its reverse (4551322), we get a palindrome (6782876).

The spelling of 2231554 in words is "two million, two hundred thirty-one thousand, five hundred fifty-four".