38163157 has 4 divisors (see below), whose sum is σ = 38177440. Its totient is φ = 38148876.

The previous prime is 38163143. The next prime is 38163173. The reversal of 38163157 is 75136183.

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 a de Polignac number, because none of the positive numbers 2^k-38163157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38163197) 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, 1803 + ... + 8920.

It is an arithmetic number, because the mean of its divisors is an integer number (9544360).

Almost surely, 2^38163157 is an apocalyptic number.

It is an amenable number.

38163157 is a deficient number, since it is larger than the sum of its proper divisors (14283).

38163157 is a wasteful number, since it uses less digits than its factorization.

38163157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14282.

The product of its digits is 15120, while the sum is 34.

The square root of 38163157 is about 6177.6336084297. The cubic root of 38163157 is about 336.6780201816.

The spelling of 38163157 in words is "thirty-eight million, one hundred sixty-three thousand, one hundred fifty-seven".