30122160 has 40 divisors (see below), whose sum is σ = 93379440. Its totient is φ = 8032512.

The previous prime is 30122153. The next prime is 30122161. The reversal of 30122160 is 6122103.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (30122161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62515 + ... + 62994.

It is an arithmetic number, because the mean of its divisors is an integer number (2334486).

Almost surely, 2^30122160 is an apocalyptic number.

30122160 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30122160 is an abundant number, since it is smaller than the sum of its proper divisors (63257280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30122160 is a wasteful number, since it uses less digits than its factorization.

30122160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125525 (or 125519 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 30122160 is about 5488.3658770166. The cubic root of 30122160 is about 311.1444344502.

Adding to 30122160 its reverse (6122103), we get a palindrome (36244263).

The spelling of 30122160 in words is "thirty million, one hundred twenty-two thousand, one hundred sixty".