2231959 has 4 divisors (see below), whose sum is σ = 2245816. Its totient is φ = 2218104.

The previous prime is 2231941. The next prime is 2232017. The reversal of 2231959 is 9591322.

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

It is not a de Polignac number, because 2231959 - 2⁹ = 2231447 is a prime.

It is a super-3 number, since 3×2231959³ = 33356455244711721237, which contains 333 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2231959.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231909) 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, 6684 + ... + 7009.

It is an arithmetic number, because the mean of its divisors is an integer number (561454).

2^2231959 is an apocalyptic number.

2231959 is a deficient number, since it is larger than the sum of its proper divisors (13857).

2231959 is a wasteful number, since it uses less digits than its factorization.

2231959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13856.

The product of its digits is 4860, while the sum is 31.

The square root of 2231959 is about 1493.9742300321. The cubic root of 2231959 is about 130.6859013345.

The spelling of 2231959 in words is "two million, two hundred thirty-one thousand, nine hundred fifty-nine".