2231955 has 48 divisors (see below), whose sum is σ = 4402944. Its totient is φ = 1075680.

The previous prime is 2231941. The next prime is 2232017. The reversal of 2231955 is 5591322.

It is not a de Polignac number, because 2231955 - 2⁶ = 2231891 is a prime.

It is a super-3 number, since 3×2231955³ = 33356275905957926625, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a d-powerful number, because it can be written as 2¹⁰ + 2¹⁸ + 3³ + 1 + 9 + 5⁶ + 5⁹ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13282 + ... + 13448.

It is an arithmetic number, because the mean of its divisors is an integer number (91728).

2^2231955 is an apocalyptic number.

2231955 is a deficient number, since it is larger than the sum of its proper divisors (2170989).

2231955 is a wasteful number, since it uses less digits than its factorization.

2231955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198 (or 186 counting only the distinct ones).

The product of its digits is 2700, while the sum is 27.

The square root of 2231955 is about 1493.9728913203. The cubic root of 2231955 is about 130.6858232650.

The spelling of 2231955 in words is "two million, two hundred thirty-one thousand, nine hundred fifty-five".