38149057 has 4 divisors (see below), whose sum is σ = 38164356. Its totient is φ = 38133760.

The previous prime is 38149051. The next prime is 38149073. The reversal of 38149057 is 75094183.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27709696 + 10439361 = 5264^2 + 3231^2 .

It is a cyclic number.

It is not a de Polignac number, because 38149057 - 2¹¹ = 38147009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38149051) 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 3 ways as a sum of consecutive naturals, for example, 2944 + ... + 9217.

It is an arithmetic number, because the mean of its divisors is an integer number (9541089).

Almost surely, 2^38149057 is an apocalyptic number.

It is an amenable number.

38149057 is a deficient number, since it is larger than the sum of its proper divisors (15299).

38149057 is a wasteful number, since it uses less digits than its factorization.

38149057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15298.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 38149057 is about 6176.4922893176. The cubic root of 38149057 is about 336.6365513478.

The spelling of 38149057 in words is "thirty-eight million, one hundred forty-nine thousand, fifty-seven".