38725161 has 4 divisors (see below), whose sum is σ = 51633552. Its totient is φ = 25816772.

The previous prime is 38725147. The next prime is 38725177. The reversal of 38725161 is 16152783.

38725161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 38725161 - 2¹⁰ = 38724137 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38725111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6454191 + ... + 6454196.

It is an arithmetic number, because the mean of its divisors is an integer number (12908388).

Almost surely, 2^38725161 is an apocalyptic number.

It is an amenable number.

38725161 is a deficient number, since it is larger than the sum of its proper divisors (12908391).

38725161 is a wasteful number, since it uses less digits than its factorization.

38725161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12908390.

The product of its digits is 10080, while the sum is 33.

The square root of 38725161 is about 6222.9543626802. The cubic root of 38725161 is about 338.3226526971.

The spelling of 38725161 in words is "thirty-eight million, seven hundred twenty-five thousand, one hundred sixty-one".