604838161 has 4 divisors (see below), whose sum is σ = 607086900. Its totient is φ = 602589424.

The previous prime is 604838147. The next prime is 604838167. The reversal of 604838161 is 161838406.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 161838406 = 2 ⋅80919203.

It can be written as a sum of positive squares in 2 ways, for example, as 208629136 + 396209025 = 14444^2 + 19905^2 .

It is a cyclic number.

It is not a de Polignac number, because 604838161 - 2⁷ = 604838033 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 604838161.

It is not an unprimeable number, because it can be changed into a prime (604838167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1123966 + ... + 1124503.

It is an arithmetic number, because the mean of its divisors is an integer number (151771725).

Almost surely, 2^604838161 is an apocalyptic number.

It is an amenable number.

604838161 is a deficient number, since it is larger than the sum of its proper divisors (2248739).

604838161 is a wasteful number, since it uses less digits than its factorization.

604838161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2248738.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 604838161 is about 24593.4576869541. The cubic root of 604838161 is about 845.6936339795.

It can be divided in two parts, 60483 and 8161, that added together give a square (68644 = 262²).

The spelling of 604838161 in words is "six hundred four million, eight hundred thirty-eight thousand, one hundred sixty-one".