30009155 has 8 divisors (see below), whose sum is σ = 39284784. Its totient is φ = 21824800.

The previous prime is 30009149. The next prime is 30009163. The reversal of 30009155 is 55190003.

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

It is not a de Polignac number, because 30009155 - 2²² = 25814851 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30009155.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272756 + ... + 272865.

It is an arithmetic number, because the mean of its divisors is an integer number (4910598).

Almost surely, 2^30009155 is an apocalyptic number.

30009155 is a deficient number, since it is larger than the sum of its proper divisors (9275629).

30009155 is a wasteful number, since it uses less digits than its factorization.

30009155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545637.

The product of its (nonzero) digits is 675, while the sum is 23.

The square root of 30009155 is about 5478.0612446376. The cubic root of 30009155 is about 310.7548548403.

Adding to 30009155 its reverse (55190003), we get a palindrome (85199158).

The spelling of 30009155 in words is "thirty million, nine thousand, one hundred fifty-five".