2065431 has 4 divisors (see below), whose sum is σ = 2753912. Its totient is φ = 1376952.

The previous prime is 2065429. The next prime is 2065489. The reversal of 2065431 is 1345602.

It is a happy number.

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

It is not a de Polignac number, because 2065431 - 2¹ = 2065429 is a prime.

It is a super-2 number, since 2×2065431² = 8532010431522, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2⁵ + 0 + 6⁶ + 5⁹ + 4⁸ + 3⁴ + 1 .

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2065398 and 2065407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2065411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344236 + ... + 344241.

It is an arithmetic number, because the mean of its divisors is an integer number (688478).

2^2065431 is an apocalyptic number.

2065431 is a deficient number, since it is larger than the sum of its proper divisors (688481).

2065431 is an equidigital number, since it uses as much as digits as its factorization.

2065431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688480.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2065431 is about 1437.1607425754. The cubic root of 2065431 is about 127.3513531022.

The spelling of 2065431 in words is "two million, sixty-five thousand, four hundred thirty-one".