1065373181 has 2 divisors, whose sum is σ = 1065373182. Its totient is φ = 1065373180.

The previous prime is 1065373159. The next prime is 1065373219. The reversal of 1065373181 is 1813735601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 894548281 + 170824900 = 29909^2 + 13070^2 .

It is an emirp because it is prime and its reverse (1813735601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1065373181 - 2¹⁴ = 1065356797 is a prime.

It is a super-2 number, since 2×1065373181² = 2270040029588117522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1065373081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532686590 + 532686591.

It is an arithmetic number, because the mean of its divisors is an integer number (532686591).

Almost surely, 2^1065373181 is an apocalyptic number.

It is an amenable number.

1065373181 is a deficient number, since it is larger than the sum of its proper divisors (1).

1065373181 is an equidigital number, since it uses as much as digits as its factorization.

1065373181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 1065373181 is about 32640.0548559588. The cubic root of 1065373181 is about 1021.3327385254.

The spelling of 1065373181 in words is "one billion, sixty-five million, three hundred seventy-three thousand, one hundred eighty-one".