30122045 has 8 divisors (see below), whose sum is σ = 38272824. Its totient is φ = 22680064.

The previous prime is 30122023. The next prime is 30122051. The reversal of 30122045 is 54022103.

It can be written as a sum of positive squares in 4 ways, for example, as 4831204 + 25290841 = 2198^2 + 5029^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 30122045 - 2²⁴ = 13344829 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 177104 + ... + 177273.

It is an arithmetic number, because the mean of its divisors is an integer number (4784103).

Almost surely, 2^30122045 is an apocalyptic number.

It is an amenable number.

30122045 is a deficient number, since it is larger than the sum of its proper divisors (8150779).

30122045 is a wasteful number, since it uses less digits than its factorization.

30122045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354399.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 30122045 is about 5488.3554002998. The cubic root of 30122045 is about 311.1440384886.

Adding to 30122045 its reverse (54022103), we get a palindrome (84144148).

The spelling of 30122045 in words is "thirty million, one hundred twenty-two thousand, forty-five".