534845581 has 2 divisors, whose sum is σ = 534845582. Its totient is φ = 534845580.

The previous prime is 534845537. The next prime is 534845629. The reversal of 534845581 is 185548435.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 459416356 + 75429225 = 21434^2 + 8685^2 .

It is a cyclic number.

It is not a de Polignac number, because 534845581 - 2⁷ = 534845453 is a prime.

It is a super-2 number, since 2×534845581² = 572119591030455122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (534845081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267422790 + 267422791.

It is an arithmetic number, because the mean of its divisors is an integer number (267422791).

Almost surely, 2^534845581 is an apocalyptic number.

It is an amenable number.

534845581 is a deficient number, since it is larger than the sum of its proper divisors (1).

534845581 is an equidigital number, since it uses as much as digits as its factorization.

534845581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 384000, while the sum is 43.

The square root of 534845581 is about 23126.7287137632. The cubic root of 534845581 is about 811.7260257518.

The spelling of 534845581 in words is "five hundred thirty-four million, eight hundred forty-five thousand, five hundred eighty-one".