541256169 has 4 divisors (see below), whose sum is σ = 721674896. Its totient is φ = 360837444.

The previous prime is 541256161. The next prime is 541256201. The reversal of 541256169 is 961652145.

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.

It is not a de Polignac number, because 541256169 - 2³ = 541256161 is a prime.

It is a super-2 number, since 2×541256169² = 585916480961113122, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (541256161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90209359 + ... + 90209364.

It is an arithmetic number, because the mean of its divisors is an integer number (180418724).

Almost surely, 2^541256169 is an apocalyptic number.

It is an amenable number.

541256169 is a deficient number, since it is larger than the sum of its proper divisors (180418727).

541256169 is a wasteful number, since it uses less digits than its factorization.

541256169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180418726.

The product of its digits is 64800, while the sum is 39.

The square root of 541256169 is about 23264.9128302687. The cubic root of 541256169 is about 814.9562343668.

The spelling of 541256169 in words is "five hundred forty-one million, two hundred fifty-six thousand, one hundred sixty-nine".