38131217 has 8 divisors (see below), whose sum is σ = 39868416. Its totient is φ = 36400672.

The previous prime is 38131211. The next prime is 38131229. The reversal of 38131217 is 71213183.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38131217 - 2¹⁰ = 38130193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38131211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12848 + ... + 15534.

It is an arithmetic number, because the mean of its divisors is an integer number (4983552).

Almost surely, 2^38131217 is an apocalyptic number.

It is an amenable number.

38131217 is a deficient number, since it is larger than the sum of its proper divisors (1737199).

38131217 is a wasteful number, since it uses less digits than its factorization.

38131217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3327.

The product of its digits is 1008, while the sum is 26.

The square root of 38131217 is about 6175.0479350366. The cubic root of 38131217 is about 336.5840683338.

The spelling of 38131217 in words is "thirty-eight million, one hundred thirty-one thousand, two hundred seventeen".