39222161 has 8 divisors (see below), whose sum is σ = 44168448. Its totient is φ = 34506000.

The previous prime is 39222151. The next prime is 39222167. The reversal of 39222161 is 16122293.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39222161 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 39222161.

It is not an unprimeable number, because it can be changed into a prime (39222167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57170 + ... + 57851.

It is an arithmetic number, because the mean of its divisors is an integer number (5521056).

Almost surely, 2^39222161 is an apocalyptic number.

39222161 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

39222161 is a deficient number, since it is larger than the sum of its proper divisors (4946287).

39222161 is a wasteful number, since it uses less digits than its factorization.

39222161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115063.

The product of its digits is 1296, while the sum is 26.

The square root of 39222161 is about 6262.7598548883. The cubic root of 39222161 is about 339.7638527461.

The spelling of 39222161 in words is "thirty-nine million, two hundred twenty-two thousand, one hundred sixty-one".