2144631 has 12 divisors (see below), whose sum is σ = 2958072. Its totient is φ = 1381104.

The previous prime is 2144629. The next prime is 2144641. The reversal of 2144631 is 1364412.

It is not a de Polignac number, because 2144631 - 2¹ = 2144629 is a prime.

It is a super-2 number, since 2×2144631² = 9198884252322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2144598 and 2144607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15360 + ... + 15498.

It is an arithmetic number, because the mean of its divisors is an integer number (246506).

2^2144631 is an apocalyptic number.

2144631 is a deficient number, since it is larger than the sum of its proper divisors (813441).

2144631 is an equidigital number, since it uses as much as digits as its factorization.

2144631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318 (or 179 counting only the distinct ones).

The product of its digits is 576, while the sum is 21.

The square root of 2144631 is about 1464.4558716465. The cubic root of 2144631 is about 128.9587633354.

It can be divided in two parts, 2144 and 631, that added together give a triangular number (2775 = T₇₄).

The spelling of 2144631 in words is "two million, one hundred forty-four thousand, six hundred thirty-one".