38081539 has 2 divisors, whose sum is σ = 38081540. Its totient is φ = 38081538.

The previous prime is 38081509. The next prime is 38081557. The reversal of 38081539 is 93518083.

It is a strong prime.

It is an emirp because it is prime and its reverse (93518083) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38081539 - 2¹¹ = 38079491 is a prime.

It is a super-2 number, since 2×38081539² = 2900407225217042, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 38081498 and 38081507.

It is not a weakly prime, because it can be changed into another prime (38081509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19040769 + 19040770.

It is an arithmetic number, because the mean of its divisors is an integer number (19040770).

Almost surely, 2^38081539 is an apocalyptic number.

38081539 is a deficient number, since it is larger than the sum of its proper divisors (1).

38081539 is an equidigital number, since it uses as much as digits as its factorization.

38081539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 38081539 is about 6171.0241451480. The cubic root of 38081539 is about 336.4378356553.

The spelling of 38081539 in words is "thirty-eight million, eighty-one thousand, five hundred thirty-nine".