30122145 has 32 divisors (see below), whose sum is σ = 54806400. Its totient is φ = 15688512.

The previous prime is 30122137. The next prime is 30122153. The reversal of 30122145 is 54122103.

It is an interprime number because it is at equal distance from previous prime (30122137) and next prime (30122153).

It is not a de Polignac number, because 30122145 - 2³ = 30122137 is a prime.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 3211 + ... + 8399.

It is an arithmetic number, because the mean of its divisors is an integer number (1712700).

Almost surely, 2^30122145 is an apocalyptic number.

It is an amenable number.

30122145 is a deficient number, since it is larger than the sum of its proper divisors (24684255).

30122145 is a wasteful number, since it uses less digits than its factorization.

30122145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5246 (or 5240 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 30122145 is about 5488.3645104894. The cubic root of 30122145 is about 311.1443828031.

Adding to 30122145 its reverse (54122103), we get a palindrome (84244248).

The spelling of 30122145 in words is "thirty million, one hundred twenty-two thousand, one hundred forty-five".