38146531 has 2 divisors, whose sum is σ = 38146532. Its totient is φ = 38146530.

The previous prime is 38146529. The next prime is 38146543. The reversal of 38146531 is 13564183.

It is a weak prime.

It is an emirp because it is prime and its reverse (13564183) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38146531 - 2¹ = 38146529 is a prime.

It is a super-2 number, since 2×38146531² = 2910315654667922, which contains 22 as substring.

Together with 38146529, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 38146493 and 38146502.

It is not a weakly prime, because it can be changed into another prime (38146561) 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 as a sum of consecutive naturals, namely, 19073265 + 19073266.

It is an arithmetic number, because the mean of its divisors is an integer number (19073266).

Almost surely, 2^38146531 is an apocalyptic number.

38146531 is a deficient number, since it is larger than the sum of its proper divisors (1).

38146531 is an equidigital number, since it uses as much as digits as its factorization.

38146531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 31.

The square root of 38146531 is about 6176.2878009367. The cubic root of 38146531 is about 336.6291211711.

The spelling of 38146531 in words is "thirty-eight million, one hundred forty-six thousand, five hundred thirty-one".