1065100161 has 4 divisors (see below), whose sum is σ = 1420133552. Its totient is φ = 710066772.

The previous prime is 1065100097. The next prime is 1065100217. The reversal of 1065100161 is 1610015601.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1610015601 = 3 ⋅536671867.

It is not a de Polignac number, because 1065100161 - 2⁶ = 1065100097 is a prime.

It is a super-2 number, since 2×1065100161² = 2268876705924451842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1065100961) 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, 177516691 + ... + 177516696.

It is an arithmetic number, because the mean of its divisors is an integer number (355033388).

Almost surely, 2^1065100161 is an apocalyptic number.

It is an amenable number.

1065100161 is a deficient number, since it is larger than the sum of its proper divisors (355033391).

1065100161 is an equidigital number, since it uses as much as digits as its factorization.

1065100161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355033390.

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 1065100161 is about 32635.8723033413. The cubic root of 1065100161 is about 1021.2454864425.

Adding to 1065100161 its reverse (1610015601), we get a palindrome (2675115762).

The spelling of 1065100161 in words is "one billion, sixty-five million, one hundred thousand, one hundred sixty-one".