938156161 has 8 divisors (see below), whose sum is σ = 949135880. Its totient is φ = 927203328.

The previous prime is 938156159. The next prime is 938156173. The reversal of 938156161 is 161651839.

It can be written as a sum of positive squares in 4 ways, for example, as 266309761 + 671846400 = 16319^2 + 25920^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 938156161 - 2¹ = 938156159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (938156761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68305 + ... + 80881.

It is an arithmetic number, because the mean of its divisors is an integer number (118641985).

Almost surely, 2^938156161 is an apocalyptic number.

It is an amenable number.

938156161 is a deficient number, since it is larger than the sum of its proper divisors (10979719).

938156161 is a wasteful number, since it uses less digits than its factorization.

938156161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13443.

The product of its digits is 38880, while the sum is 40.

The square root of 938156161 is about 30629.3349748244. The cubic root of 938156161 is about 978.9451933498.

The spelling of 938156161 in words is "nine hundred thirty-eight million, one hundred fifty-six thousand, one hundred sixty-one".