1065361919 has 4 divisors (see below), whose sum is σ = 1065832896. Its totient is φ = 1064890944.

The previous prime is 1065361907. The next prime is 1065361931. The reversal of 1065361919 is 9191635601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9191635601 = 65701 ⋅139901.

It is an interprime number because it is at equal distance from previous prime (1065361907) and next prime (1065361931).

It is a cyclic number.

It is not a de Polignac number, because 1065361919 - 2⁸ = 1065361663 is a prime.

It is a super-2 number, since 2×1065361919² = 2269992036910725122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1065361819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232079 + ... + 236624.

It is an arithmetic number, because the mean of its divisors is an integer number (266458224).

Almost surely, 2^1065361919 is an apocalyptic number.

1065361919 is a deficient number, since it is larger than the sum of its proper divisors (470977).

1065361919 is an equidigital number, since it uses as much as digits as its factorization.

1065361919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470976.

The product of its (nonzero) digits is 43740, while the sum is 41.

The square root of 1065361919 is about 32639.8823374105. The cubic root of 1065361919 is about 1021.3291396957.

The spelling of 1065361919 in words is "one billion, sixty-five million, three hundred sixty-one thousand, nine hundred nineteen".