30612745 has 8 divisors (see below), whose sum is σ = 37517184. Its totient is φ = 23968944.

The previous prime is 30612739. The next prime is 30612749. The reversal of 30612745 is 54721603.

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 30612745 - 2¹⁵ = 30579977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30612749) 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, 64899 + ... + 65368.

It is an arithmetic number, because the mean of its divisors is an integer number (4689648).

Almost surely, 2^30612745 is an apocalyptic number.

It is an amenable number.

30612745 is a deficient number, since it is larger than the sum of its proper divisors (6904439).

30612745 is a wasteful number, since it uses less digits than its factorization.

30612745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130319.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 30612745 is about 5532.8785455674. The cubic root of 30612745 is about 312.8244991909.

The spelling of 30612745 in words is "thirty million, six hundred twelve thousand, seven hundred forty-five".