38129851 has 4 divisors (see below), whose sum is σ = 38144704. Its totient is φ = 38115000.

The previous prime is 38129849. The next prime is 38129857. The reversal of 38129851 is 15892183.

38129851 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.

It is a cyclic number.

It is not a de Polignac number, because 38129851 - 2¹ = 38129849 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38129851.

It is not an unprimeable number, because it can be changed into a prime (38129857) 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, 2475 + ... + 9076.

It is an arithmetic number, because the mean of its divisors is an integer number (9536176).

Almost surely, 2^38129851 is an apocalyptic number.

38129851 is the 3301-st nonagonal number.

38129851 is a deficient number, since it is larger than the sum of its proper divisors (14853).

38129851 is a wasteful number, since it uses less digits than its factorization.

38129851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14852.

The product of its digits is 17280, while the sum is 37.

The square root of 38129851 is about 6174.9373276172. The cubic root of 38129851 is about 336.5800490607.

The spelling of 38129851 in words is "thirty-eight million, one hundred twenty-nine thousand, eight hundred fifty-one".