541435581 has 12 divisors (see below), whose sum is σ = 783150108. Its totient is φ = 360460224.

The previous prime is 541435547. The next prime is 541435589. The reversal of 541435581 is 185534145.

541435581 is a `hidden beast` number, since 5 + 41 + 4 + 35 + 581 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 245423556 + 296012025 = 15666^2 + 17205^2 .

It is not a de Polignac number, because 541435581 - 2¹³ = 541427389 is a prime.

It is a super-2 number, since 2×541435581² = 586304976745615122, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (541435589) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34440 + ... + 47633.

It is an arithmetic number, because the mean of its divisors is an integer number (65262509).

Almost surely, 2^541435581 is an apocalyptic number.

It is an amenable number.

541435581 is a deficient number, since it is larger than the sum of its proper divisors (241714527).

541435581 is a wasteful number, since it uses less digits than its factorization.

541435581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82812 (or 82809 counting only the distinct ones).

The product of its digits is 48000, while the sum is 36.

The square root of 541435581 is about 23268.7683601861. The cubic root of 541435581 is about 815.0462698460.

The spelling of 541435581 in words is "five hundred forty-one million, four hundred thirty-five thousand, five hundred eighty-one".