39122147 has 2 divisors, whose sum is σ = 39122148. Its totient is φ = 39122146.

The previous prime is 39122141. The next prime is 39122179. The reversal of 39122147 is 74122193.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 39122147 - 2⁸ = 39121891 is a prime.

It is not a weakly prime, because it can be changed into another prime (39122141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19561073 + 19561074.

It is an arithmetic number, because the mean of its divisors is an integer number (19561074).

Almost surely, 2^39122147 is an apocalyptic number.

39122147 is a deficient number, since it is larger than the sum of its proper divisors (1).

39122147 is an equidigital number, since it uses as much as digits as its factorization.

39122147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 29.

The square root of 39122147 is about 6254.7699398139. The cubic root of 39122147 is about 339.4748149051.

The spelling of 39122147 in words is "thirty-nine million, one hundred twenty-two thousand, one hundred forty-seven".