2065613431 has 4 divisors (see below), whose sum is σ = 2360701072. Its totient is φ = 1770525792.

The previous prime is 2065613399. The next prime is 2065613453. The reversal of 2065613431 is 1343165602.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1343165602 = 2 ⋅671582801.

It is not a de Polignac number, because 2065613431 - 2⁵ = 2065613399 is a prime.

It is a super-2 number, since 2×2065613431² = 8533517692655183522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2065613393 and 2065613402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2065613461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147543810 + ... + 147543823.

It is an arithmetic number, because the mean of its divisors is an integer number (590175268).

Almost surely, 2^2065613431 is an apocalyptic number.

2065613431 is a deficient number, since it is larger than the sum of its proper divisors (295087641).

2065613431 is an equidigital number, since it uses as much as digits as its factorization.

2065613431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295087640.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 2065613431 is about 45449.0201324517. The cubic root of 2065613431 is about 1273.5510246503.

The spelling of 2065613431 in words is "two billion, sixty-five million, six hundred thirteen thousand, four hundred thirty-one".