38285231 has 2 divisors, whose sum is σ = 38285232. Its totient is φ = 38285230.

The previous prime is 38285183. The next prime is 38285243. The reversal of 38285231 is 13258283.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38285231 - 2⁶ = 38285167 is a prime.

It is a super-2 number, since 2×38285231² = 2931517825446722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38285131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19142615 + 19142616.

It is an arithmetic number, because the mean of its divisors is an integer number (19142616).

Almost surely, 2^38285231 is an apocalyptic number.

38285231 is a deficient number, since it is larger than the sum of its proper divisors (1).

38285231 is an equidigital number, since it uses as much as digits as its factorization.

38285231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 32.

The square root of 38285231 is about 6187.5060404011. The cubic root of 38285231 is about 337.0366198645.

The spelling of 38285231 in words is "thirty-eight million, two hundred eighty-five thousand, two hundred thirty-one".