534521861 has 2 divisors, whose sum is σ = 534521862. Its totient is φ = 534521860.

The previous prime is 534521831. The next prime is 534521891. The reversal of 534521861 is 168125435.

It is a balanced prime because it is at equal distance from previous prime (534521831) and next prime (534521891).

It can be written as a sum of positive squares in only one way, i.e., 481144225 + 53377636 = 21935^2 + 7306^2 .

It is a cyclic number.

It is not a de Polignac number, because 534521861 - 2¹⁸ = 534259717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (534521831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267260930 + 267260931.

It is an arithmetic number, because the mean of its divisors is an integer number (267260931).

Almost surely, 2^534521861 is an apocalyptic number.

It is an amenable number.

534521861 is a deficient number, since it is larger than the sum of its proper divisors (1).

534521861 is an equidigital number, since it uses as much as digits as its factorization.

534521861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28800, while the sum is 35.

The square root of 534521861 is about 23119.7288262644. The cubic root of 534521861 is about 811.5622245904.

The spelling of 534521861 in words is "five hundred thirty-four million, five hundred twenty-one thousand, eight hundred sixty-one".