30105522 has 12 divisors (see below), whose sum is σ = 65228670. Its totient is φ = 10035168.

The previous prime is 30105499. The next prime is 30105529. The reversal of 30105522 is 22550103.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 29257281 + 848241 = 5409^2 + 921^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1672529 = 30105522 / (3 + 0 + 1 + 0 + 5 + 5 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 30105495 and 30105504.

It is not an unprimeable number, because it can be changed into a prime (30105529) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 836247 + ... + 836282.

Almost surely, 2^30105522 is an apocalyptic number.

30105522 is an abundant number, since it is smaller than the sum of its proper divisors (35123148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30105522 is a wasteful number, since it uses less digits than its factorization.

30105522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1672537 (or 1672534 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 30105522 is about 5486.8499159354. The cubic root of 30105522 is about 311.0871369376.

Adding to 30105522 its reverse (22550103), we get a palindrome (52655625).

The spelling of 30105522 in words is "thirty million, one hundred five thousand, five hundred twenty-two".