577340161 has 2 divisors, whose sum is σ = 577340162. Its totient is φ = 577340160.

The previous prime is 577340143. The next prime is 577340167. The reversal of 577340161 is 161043775.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 423083761 + 154256400 = 20569^2 + 12420^2 .

It is a cyclic number.

It is not a de Polignac number, because 577340161 - 2⁵ = 577340129 is a prime.

It is a super-4 number, since 4×577340161⁴ (a number of 36 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (577340167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 288670080 + 288670081.

It is an arithmetic number, because the mean of its divisors is an integer number (288670081).

Almost surely, 2^577340161 is an apocalyptic number.

It is an amenable number.

577340161 is a deficient number, since it is larger than the sum of its proper divisors (1).

577340161 is an equidigital number, since it uses as much as digits as its factorization.

577340161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 577340161 is about 24027.9037995411. The cubic root of 577340161 is about 832.6783181165.

The spelling of 577340161 in words is "five hundred seventy-seven million, three hundred forty thousand, one hundred sixty-one".