38142331 has 2 divisors, whose sum is σ = 38142332. Its totient is φ = 38142330.

The previous prime is 38142289. The next prime is 38142389. The reversal of 38142331 is 13324183.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38142331 - 2⁹ = 38141819 is a prime.

It is a super-2 number, since 2×38142331² = 2909674828227122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 38142296 and 38142305.

It is not a weakly prime, because it can be changed into another prime (38142031) 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, 19071165 + 19071166.

It is an arithmetic number, because the mean of its divisors is an integer number (19071166).

Almost surely, 2^38142331 is an apocalyptic number.

38142331 is a deficient number, since it is larger than the sum of its proper divisors (1).

38142331 is an equidigital number, since it uses as much as digits as its factorization.

38142331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 25.

The square root of 38142331 is about 6175.9477815150. The cubic root of 38142331 is about 336.6167662320.

The spelling of 38142331 in words is "thirty-eight million, one hundred forty-two thousand, three hundred thirty-one".