39122985 has 32 divisors (see below), whose sum is σ = 68861952. Its totient is φ = 18809280.

The previous prime is 39122983. The next prime is 39122989. The reversal of 39122985 is 58922193.

It is not a de Polignac number, because 39122985 - 2¹ = 39122983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39122981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20022 + ... + 21888.

It is an arithmetic number, because the mean of its divisors is an integer number (2151936).

Almost surely, 2^39122985 is an apocalyptic number.

It is an amenable number.

39122985 is a deficient number, since it is larger than the sum of its proper divisors (29738967).

39122985 is a wasteful number, since it uses less digits than its factorization.

39122985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2013.

The product of its digits is 38880, while the sum is 39.

The square root of 39122985 is about 6254.8369283299. The cubic root of 39122985 is about 339.4772387484.

The spelling of 39122985 in words is "thirty-nine million, one hundred twenty-two thousand, nine hundred eighty-five".