38538163 has 4 divisors (see below), whose sum is σ = 38753640. Its totient is φ = 38322688.

The previous prime is 38538139. The next prime is 38538169. The reversal of 38538163 is 36183583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36183583 = 419 ⋅86357.

It is a cyclic number.

It is not a de Polignac number, because 38538163 - 2⁹ = 38537651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38538169) 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, 107470 + ... + 107827.

It is an arithmetic number, because the mean of its divisors is an integer number (9688410).

Almost surely, 2^38538163 is an apocalyptic number.

38538163 is a deficient number, since it is larger than the sum of its proper divisors (215477).

38538163 is a wasteful number, since it uses less digits than its factorization.

38538163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215476.

The product of its digits is 51840, while the sum is 37.

The square root of 38538163 is about 6207.9113234646. The cubic root of 38538163 is about 337.7772039905. Note that the first 3 decimals are identical.

The spelling of 38538163 in words is "thirty-eight million, five hundred thirty-eight thousand, one hundred sixty-three".