1346265161 has 4 divisors (see below), whose sum is σ = 1356092052. Its totient is φ = 1336438272.

The previous prime is 1346265157. The next prime is 1346265191. The reversal of 1346265161 is 1615626431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1615626431 = 2027 ⋅797053.

It can be written as a sum of positive squares in 2 ways, for example, as 679592761 + 666672400 = 26069^2 + 25820^2 .

It is a cyclic number.

It is not a de Polignac number, because 1346265161 - 2² = 1346265157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1346265191) 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, 4913240 + ... + 4913513.

It is an arithmetic number, because the mean of its divisors is an integer number (339023013).

Almost surely, 2^1346265161 is an apocalyptic number.

It is an amenable number.

1346265161 is a deficient number, since it is larger than the sum of its proper divisors (9826891).

1346265161 is an equidigital number, since it uses as much as digits as its factorization.

1346265161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9826890.

The product of its digits is 25920, while the sum is 35.

The square root of 1346265161 is about 36691.4862195578. The cubic root of 1346265161 is about 1104.1893034729.

The spelling of 1346265161 in words is "one billion, three hundred forty-six million, two hundred sixty-five thousand, one hundred sixty-one".