541159965 has 24 divisors (see below), whose sum is σ = 963365208. Its totient is φ = 280817280.

The previous prime is 541159951. The next prime is 541159967. The reversal of 541159965 is 569951145.

It is a happy number.

541159965 is a `hidden beast` number, since 54 + 1 + 1 + 599 + 6 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 343954116 + 197205849 = 18546^2 + 14043^2 .

It is not a de Polignac number, because 541159965 - 2¹⁰ = 541158941 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 541159965.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (541159967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is an upside-down number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 160846 + ... + 164175.

It is an arithmetic number, because the mean of its divisors is an integer number (40140217).

Almost surely, 2^541159965 is an apocalyptic number.

It is an amenable number.

541159965 is a deficient number, since it is larger than the sum of its proper divisors (422205243).

541159965 is a wasteful number, since it uses less digits than its factorization.

541159965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325069 (or 325066 counting only the distinct ones).

The product of its digits is 243000, while the sum is 45.

The square root of 541159965 is about 23262.8451613297. The cubic root of 541159965 is about 814.9079474991.

The spelling of 541159965 in words is "five hundred forty-one million, one hundred fifty-nine thousand, nine hundred sixty-five".