938258161 has 3 divisors (see below), whose sum is σ = 938288793. Its totient is φ = 938227530.

The previous prime is 938258149. The next prime is 938258291. The reversal of 938258161 is 161852839.

The square root of 938258161 is 30631.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 161852839 = 11239 ⋅14401.

It is not a de Polignac number, because 938258161 - 2⁵ = 938258129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (938255161) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 15316 + ... + 45946.

It is an arithmetic number, because the mean of its divisors is an integer number (312762931).

Almost surely, 2^938258161 is an apocalyptic number.

938258161 is the 30631-st square number.

938258161 is the 15316-th centered octagonal number.

It is an amenable number.

938258161 is a deficient number, since it is larger than the sum of its proper divisors (30632).

938258161 is an frugal number, since it uses more digits than its factorization.

938258161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61262 (or 30631 counting only the distinct ones).

The product of its digits is 103680, while the sum is 43.

The cubic root of 938258161 is about 978.9806703117.

The spelling of 938258161 in words is "nine hundred thirty-eight million, two hundred fifty-eight thousand, one hundred sixty-one".