38142319 has 4 divisors (see below), whose sum is σ = 38183544. Its totient is φ = 38101096.

The previous prime is 38142289. The next prime is 38142331. The reversal of 38142319 is 91324183.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 38142319 - 2⁷ = 38142191 is a prime.

It is a super-2 number, since 2×38142319² = 2909672997395522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38142389) 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 in 3 ways as a sum of consecutive naturals, for example, 19192 + ... + 21085.

It is an arithmetic number, because the mean of its divisors is an integer number (9545886).

Almost surely, 2^38142319 is an apocalyptic number.

38142319 is a deficient number, since it is larger than the sum of its proper divisors (41225).

38142319 is an equidigital number, since it uses as much as digits as its factorization.

38142319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41224.

The product of its digits is 5184, while the sum is 31.

The square root of 38142319 is about 6175.9468100041. The cubic root of 38142319 is about 336.6167309309.

The spelling of 38142319 in words is "thirty-eight million, one hundred forty-two thousand, three hundred nineteen".