38172159 has 12 divisors (see below), whose sum is σ = 58039800. Its totient is φ = 24108624.

The previous prime is 38172151. The next prime is 38172163. The reversal of 38172159 is 95127183.

It is not a de Polignac number, because 38172159 - 2³ = 38172151 is a prime.

It is a super-2 number, since 2×38172159² = 2914227445442562, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38172151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111444 + ... + 111785.

It is an arithmetic number, because the mean of its divisors is an integer number (4836650).

Almost surely, 2^38172159 is an apocalyptic number.

38172159 is a deficient number, since it is larger than the sum of its proper divisors (19867641).

38172159 is a wasteful number, since it uses less digits than its factorization.

38172159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223254 (or 223251 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 38172159 is about 6178.3621616089. The cubic root of 38172159 is about 336.7044901900.

The spelling of 38172159 in words is "thirty-eight million, one hundred seventy-two thousand, one hundred fifty-nine".