38082139 has 4 divisors (see below), whose sum is σ = 39111424. Its totient is φ = 37052856.

The previous prime is 38082131. The next prime is 38082169. The reversal of 38082139 is 93128083.

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 38082139 - 2³ = 38082131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38082131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 514587 + ... + 514660.

It is an arithmetic number, because the mean of its divisors is an integer number (9777856).

Almost surely, 2^38082139 is an apocalyptic number.

38082139 is a deficient number, since it is larger than the sum of its proper divisors (1029285).

38082139 is a wasteful number, since it uses less digits than its factorization.

38082139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029284.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 38082139 is about 6171.0727592535. The cubic root of 38082139 is about 336.4396025800.

The spelling of 38082139 in words is "thirty-eight million, eighty-two thousand, one hundred thirty-nine".