38622139 has 2 divisors, whose sum is σ = 38622140. Its totient is φ = 38622138.

The previous prime is 38622131. The next prime is 38622169. The reversal of 38622139 is 93122683.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38622139 - 2³ = 38622131 is a prime.

It is equal to p_2354695 and since 38622139 and 2354695 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (38622131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19311069 + 19311070.

It is an arithmetic number, because the mean of its divisors is an integer number (19311070).

Almost surely, 2^38622139 is an apocalyptic number.

38622139 is a deficient number, since it is larger than the sum of its proper divisors (1).

38622139 is an equidigital number, since it uses as much as digits as its factorization.

38622139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 34.

The square root of 38622139 is about 6214.6712704696. The cubic root of 38622139 is about 338.0223687681.

The spelling of 38622139 in words is "thirty-eight million, six hundred twenty-two thousand, one hundred thirty-nine".