30624121 has 8 divisors (see below), whose sum is σ = 33458688. Its totient is φ = 27798000.

The previous prime is 30624107. The next prime is 30624131. The reversal of 30624121 is 12142603.

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 30624121 - 2⁷ = 30623993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30624101) 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, 7336 + ... + 10726.

It is an arithmetic number, because the mean of its divisors is an integer number (4182336).

Almost surely, 2^30624121 is an apocalyptic number.

It is an amenable number.

30624121 is a deficient number, since it is larger than the sum of its proper divisors (2834567).

30624121 is a wasteful number, since it uses less digits than its factorization.

30624121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4223.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 30624121 is about 5533.9064863801. The cubic root of 30624121 is about 312.8632439553.

Adding to 30624121 its reverse (12142603), we get a palindrome (42766724).

The spelling of 30624121 in words is "thirty million, six hundred twenty-four thousand, one hundred twenty-one".