547164661 has 2 divisors, whose sum is σ = 547164662. Its totient is φ = 547164660.

The previous prime is 547164623. The next prime is 547164671. The reversal of 547164661 is 166461745.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 453945636 + 93219025 = 21306^2 + 9655^2 .

It is a cyclic number.

It is not a de Polignac number, because 547164661 - 2¹¹ = 547162613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (547164671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 273582330 + 273582331.

It is an arithmetic number, because the mean of its divisors is an integer number (273582331).

Almost surely, 2^547164661 is an apocalyptic number.

It is an amenable number.

547164661 is a deficient number, since it is larger than the sum of its proper divisors (1).

547164661 is an equidigital number, since it uses as much as digits as its factorization.

547164661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 40.

The square root of 547164661 is about 23391.5510601585. The cubic root of 547164661 is about 817.9109330674.

The spelling of 547164661 in words is "five hundred forty-seven million, one hundred sixty-four thousand, six hundred sixty-one".