1065391113 has 4 divisors (see below), whose sum is σ = 1420521488. Its totient is φ = 710260740.

The previous prime is 1065391097. The next prime is 1065391133. The reversal of 1065391113 is 3111935601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1065391113 - 2⁴ = 1065391097 is a prime.

It is a super-2 number, since 2×1065391113² = 2270116447318757538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1065391133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177565183 + ... + 177565188.

It is an arithmetic number, because the mean of its divisors is an integer number (355130372).

Almost surely, 2^1065391113 is an apocalyptic number.

It is an amenable number.

1065391113 is a deficient number, since it is larger than the sum of its proper divisors (355130375).

1065391113 is an equidigital number, since it uses as much as digits as its factorization.

1065391113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355130374.

The product of its (nonzero) digits is 2430, while the sum is 30.

The square root of 1065391113 is about 32640.3295479687. The cubic root of 1065391113 is about 1021.3384687353.

The spelling of 1065391113 in words is "one billion, sixty-five million, three hundred ninety-one thousand, one hundred thirteen".