2231251 has 4 divisors (see below), whose sum is σ = 2434104. Its totient is φ = 2028400.

The previous prime is 2231219. The next prime is 2231269. The reversal of 2231251 is 1521322.

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

It is not a de Polignac number, because 2231251 - 2⁵ = 2231219 is a prime.

It is a super-3 number, since 3×2231251³ = 33324722296543518753, which contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2231051) 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, 101410 + ... + 101431.

It is an arithmetic number, because the mean of its divisors is an integer number (608526).

2^2231251 is an apocalyptic number.

2231251 is a deficient number, since it is larger than the sum of its proper divisors (202853).

2231251 is a wasteful number, since it uses less digits than its factorization.

2231251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202852.

The product of its digits is 120, while the sum is 16.

The square root of 2231251 is about 1493.7372593599. The cubic root of 2231251 is about 130.6720815760.

Adding to 2231251 its reverse (1521322), we get a palindrome (3752573).

The spelling of 2231251 in words is "two million, two hundred thirty-one thousand, two hundred fifty-one".