38147109 has 32 divisors (see below), whose sum is σ = 68296704. Its totient is φ = 18290880.

The previous prime is 38147107. The next prime is 38147119. The reversal of 38147109 is 90174183.

It is not a de Polignac number, because 38147109 - 2¹ = 38147107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a self number, because there is not a number n which added to its sum of digits gives 38147109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38147107) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3349 + ... + 9354.

It is an arithmetic number, because the mean of its divisors is an integer number (2134272).

Almost surely, 2^38147109 is an apocalyptic number.

38147109 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

38147109 is a deficient number, since it is larger than the sum of its proper divisors (30149595).

38147109 is a wasteful number, since it uses less digits than its factorization.

38147109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12737.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 38147109 is about 6176.3345926204. The cubic root of 38147109 is about 336.6308213751.

The spelling of 38147109 in words is "thirty-eight million, one hundred forty-seven thousand, one hundred nine".