30122993 has 8 divisors (see below), whose sum is σ = 30426240. Its totient is φ = 29821680.

The previous prime is 30122951. The next prime is 30123001. The reversal of 30122993 is 39922103.

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 30122993 - 2⁸ = 30122737 is a prime.

It is a super-3 number, since 3×30122993³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30122093) 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, 77243 + ... + 77631.

It is an arithmetic number, because the mean of its divisors is an integer number (3803280).

Almost surely, 2^30122993 is an apocalyptic number.

It is an amenable number.

30122993 is a deficient number, since it is larger than the sum of its proper divisors (303247).

30122993 is a wasteful number, since it uses less digits than its factorization.

30122993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 30122993 is about 5488.4417642898. The cubic root of 30122993 is about 311.1473025594.

The spelling of 30122993 in words is "thirty million, one hundred twenty-two thousand, nine hundred ninety-three".