30450545 has 4 divisors (see below), whose sum is σ = 36540660. Its totient is φ = 24360432.

The previous prime is 30450533. The next prime is 30450547. The reversal of 30450545 is 54505403.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21492496 + 8958049 = 4636^2 + 2993^2 .

It is a cyclic number.

It is not a de Polignac number, because 30450545 - 2⁶ = 30450481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30450547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3045050 + ... + 3045059.

It is an arithmetic number, because the mean of its divisors is an integer number (9135165).

Almost surely, 2^30450545 is an apocalyptic number.

It is an amenable number.

30450545 is a deficient number, since it is larger than the sum of its proper divisors (6090115).

30450545 is an equidigital number, since it uses as much as digits as its factorization.

30450545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6090114.

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 30450545 is about 5518.2012467832. The cubic root of 30450545 is about 312.2710258677.

Adding to 30450545 its reverse (54505403), we get a palindrome (84955948).

The spelling of 30450545 in words is "thirty million, four hundred fifty thousand, five hundred forty-five".