38012531 has 2 divisors, whose sum is σ = 38012532. Its totient is φ = 38012530.

The previous prime is 38012503. The next prime is 38012539. The reversal of 38012531 is 13521083.

It is a strong prime.

It is an emirp because it is prime and its reverse (13521083) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38012531 - 2⁶ = 38012467 is a prime.

It is a super-2 number, since 2×38012531² = 2889905026051922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 38012497 and 38012506.

It is not a weakly prime, because it can be changed into another prime (38012539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19006265 + 19006266.

It is an arithmetic number, because the mean of its divisors is an integer number (19006266).

Almost surely, 2^38012531 is an apocalyptic number.

38012531 is a deficient number, since it is larger than the sum of its proper divisors (1).

38012531 is an equidigital number, since it uses as much as digits as its factorization.

38012531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 38012531 is about 6165.4303175042. The cubic root of 38012531 is about 336.2344918061.

The spelling of 38012531 in words is "thirty-eight million, twelve thousand, five hundred thirty-one".