534261661 has 2 divisors, whose sum is σ = 534261662. Its totient is φ = 534261660.

The previous prime is 534261599. The next prime is 534261667. The reversal of 534261661 is 166162435.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 356039161 + 178222500 = 18869^2 + 13350^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-534261661 is a prime.

It is equal to p_28062718 and since 534261661 and 28062718 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (534261667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267130830 + 267130831.

It is an arithmetic number, because the mean of its divisors is an integer number (267130831).

Almost surely, 2^534261661 is an apocalyptic number.

It is an amenable number.

534261661 is a deficient number, since it is larger than the sum of its proper divisors (1).

534261661 is an equidigital number, since it uses as much as digits as its factorization.

534261661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 34.

The square root of 534261661 is about 23114.1009126464. The cubic root of 534261661 is about 811.4305163727.

The spelling of 534261661 in words is "five hundred thirty-four million, two hundred sixty-one thousand, six hundred sixty-one".