38871513 has 12 divisors (see below), whose sum is σ = 58084260. Its totient is φ = 25020576.

The previous prime is 38871467. The next prime is 38871517. The reversal of 38871513 is 31517883.

It can be written as a sum of positive squares in 2 ways, for example, as 7601049 + 31270464 = 2757^2 + 5592^2 .

It is not a de Polignac number, because 38871513 - 2⁸ = 38871257 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38871517) 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 11 ways as a sum of consecutive naturals, for example, 74206 + ... + 74727.

It is an arithmetic number, because the mean of its divisors is an integer number (4840355).

Almost surely, 2^38871513 is an apocalyptic number.

It is an amenable number.

38871513 is a deficient number, since it is larger than the sum of its proper divisors (19212747).

38871513 is a wasteful number, since it uses less digits than its factorization.

38871513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148968 (or 148965 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 38871513 is about 6234.7023184752. The cubic root of 38871513 is about 338.7483186874.

The spelling of 38871513 in words is "thirty-eight million, eight hundred seventy-one thousand, five hundred thirteen".