30222154 has 4 divisors (see below), whose sum is σ = 45333234. Its totient is φ = 15111076.

The previous prime is 30222149. The next prime is 30222169. The reversal of 30222154 is 45122203.

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

It can be written as a sum of positive squares in only one way, i.e., 26884225 + 3337929 = 5185^2 + 1827^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7555537 + ... + 7555540.

Almost surely, 2^30222154 is an apocalyptic number.

30222154 is a deficient number, since it is larger than the sum of its proper divisors (15111080).

30222154 is a wasteful number, since it uses less digits than its factorization.

30222154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15111079.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 30222154 is about 5497.4679626170. The cubic root of 30222154 is about 311.4883475103.

Adding to 30222154 its reverse (45122203), we get a palindrome (75344357).

The spelling of 30222154 in words is "thirty million, two hundred twenty-two thousand, one hundred fifty-four".