152204161 has 4 divisors (see below), whose sum is σ = 152238852. Its totient is φ = 152169472.

The previous prime is 152204159. The next prime is 152204201. The reversal of 152204161 is 161402251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 161402251 = 37 ⋅4362223.

It can be written as a sum of positive squares in 2 ways, for example, as 32433025 + 119771136 = 5695^2 + 10944^2 .

It is a cyclic number.

It is not a de Polignac number, because 152204161 - 2¹ = 152204159 is a prime.

It is a super-2 number, since 2×152204161² = 46332213251427842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152204131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9616 + ... + 19921.

It is an arithmetic number, because the mean of its divisors is an integer number (38059713).

Almost surely, 2^152204161 is an apocalyptic number.

It is an amenable number.

152204161 is a deficient number, since it is larger than the sum of its proper divisors (34691).

152204161 is an equidigital number, since it uses as much as digits as its factorization.

152204161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34690.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 152204161 is about 12337.1050494028. The cubic root of 152204161 is about 533.9191629986.

The spelling of 152204161 in words is "one hundred fifty-two million, two hundred four thousand, one hundred sixty-one".