30223155 has 8 divisors (see below), whose sum is σ = 48357072. Its totient is φ = 16119008.

The previous prime is 30223147. The next prime is 30223177. The reversal of 30223155 is 55132203.

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 30223155 - 2³ = 30223147 is a prime.

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, 1007424 + ... + 1007453.

It is an arithmetic number, because the mean of its divisors is an integer number (6044634).

Almost surely, 2^30223155 is an apocalyptic number.

30223155 is a deficient number, since it is larger than the sum of its proper divisors (18133917).

30223155 is a wasteful number, since it uses less digits than its factorization.

30223155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2014885.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 30223155 is about 5497.5590037761. The cubic root of 30223155 is about 311.4917864489.

Adding to 30223155 its reverse (55132203), we get a palindrome (85355358).

The spelling of 30223155 in words is "thirty million, two hundred twenty-three thousand, one hundred fifty-five".