30542145 has 8 divisors (see below), whose sum is σ = 48867456. Its totient is φ = 16289136.

The previous prime is 30542123. The next prime is 30542147. The reversal of 30542145 is 54124503.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30542145 - 2¹² = 30538049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30542147) 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, 1018057 + ... + 1018086.

It is an arithmetic number, because the mean of its divisors is an integer number (6108432).

Almost surely, 2^30542145 is an apocalyptic number.

It is an amenable number.

30542145 is a deficient number, since it is larger than the sum of its proper divisors (18325311).

30542145 is a wasteful number, since it uses less digits than its factorization.

30542145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2036151.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 30542145 is about 5526.4948204083. The cubic root of 30542145 is about 312.5838324421.

Adding to 30542145 its reverse (54124503), we get a palindrome (84666648).

The spelling of 30542145 in words is "thirty million, five hundred forty-two thousand, one hundred forty-five".