38113161 has 4 divisors (see below), whose sum is σ = 50817552. Its totient is φ = 25408772.

The previous prime is 38113123. The next prime is 38113177. The reversal of 38113161 is 16131183.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16131183 = 3 ⋅5377061.

It is a cyclic number.

It is not a de Polignac number, because 38113161 - 2¹⁴ = 38096777 is a prime.

It is a super-2 number, since 2×38113161² = 2905226082823842, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38113961) 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, 6352191 + ... + 6352196.

It is an arithmetic number, because the mean of its divisors is an integer number (12704388).

Almost surely, 2^38113161 is an apocalyptic number.

It is an amenable number.

38113161 is a deficient number, since it is larger than the sum of its proper divisors (12704391).

38113161 is a wasteful number, since it uses less digits than its factorization.

38113161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12704390.

The product of its digits is 432, while the sum is 24.

The square root of 38113161 is about 6173.5857489793. The cubic root of 38113161 is about 336.5309332044.

The spelling of 38113161 in words is "thirty-eight million, one hundred thirteen thousand, one hundred sixty-one".