1541164165 has 4 divisors (see below), whose sum is σ = 1849397004. Its totient is φ = 1232931328.

The previous prime is 1541164123. The next prime is 1541164171. The reversal of 1541164165 is 5614611451.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5614611451 = 113 ⋅49686827.

It can be written as a sum of positive squares in 2 ways, for example, as 293025924 + 1248138241 = 17118^2 + 35329^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1541164165 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1541164165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154116412 + ... + 154116421.

It is an arithmetic number, because the mean of its divisors is an integer number (462349251).

Almost surely, 2^1541164165 is an apocalyptic number.

It is an amenable number.

1541164165 is a deficient number, since it is larger than the sum of its proper divisors (308232839).

1541164165 is an equidigital number, since it uses as much as digits as its factorization.

1541164165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308232838.

The product of its digits is 14400, while the sum is 34.

The square root of 1541164165 is about 39257.6637740964. The cubic root of 1541164165 is about 1155.0912679388.

The spelling of 1541164165 in words is "one billion, five hundred forty-one million, one hundred sixty-four thousand, one hundred sixty-five".