30122661 has 8 divisors (see below), whose sum is σ = 41097760. Its totient is φ = 19614672.

The previous prime is 30122633. The next prime is 30122681. The reversal of 30122661 is 16622103.

It is a happy number.

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

It is not a de Polignac number, because 30122661 - 2¹¹ = 30120613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30122611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116626 + ... + 116883.

It is an arithmetic number, because the mean of its divisors is an integer number (5137220).

Almost surely, 2^30122661 is an apocalyptic number.

It is an amenable number.

30122661 is a deficient number, since it is larger than the sum of its proper divisors (10975099).

30122661 is a wasteful number, since it uses less digits than its factorization.

30122661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233555.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 30122661 is about 5488.4115188276. The cubic root of 30122661 is about 311.1461594538.

Adding to 30122661 its reverse (16622103), we get a palindrome (46744764).

The spelling of 30122661 in words is "thirty million, one hundred twenty-two thousand, six hundred sixty-one".