30213145 has 8 divisors (see below), whose sum is σ = 37832256. Its totient is φ = 23119536.

The previous prime is 30213143. The next prime is 30213163. The reversal of 30213145 is 54131203.

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 30213145 - 2¹ = 30213143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30213143) 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, 131247 + ... + 131476.

It is an arithmetic number, because the mean of its divisors is an integer number (4729032).

Almost surely, 2^30213145 is an apocalyptic number.

It is an amenable number.

30213145 is a deficient number, since it is larger than the sum of its proper divisors (7619111).

30213145 is a wasteful number, since it uses less digits than its factorization.

30213145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262751.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 30213145 is about 5496.6485243283. The cubic root of 30213145 is about 311.4573936455.

Adding to 30213145 its reverse (54131203), we get a palindrome (84344348).

The spelling of 30213145 in words is "thirty million, two hundred thirteen thousand, one hundred forty-five".