814545522 has 90 divisors (see below), whose sum is σ = 2121420015. Its totient is φ = 225219960.

The previous prime is 814545521. The next prime is 814545539. The reversal of 814545522 is 225545418.

814545522 is a `hidden beast` number, since 81 + 4 + 54 + 5 + 522 = 666.

814545522 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 407272761 + 407272761 = 20181^2 + 20181^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=20181.

It is a super-3 number, since 3×814545522³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (814545521) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 26275647 + ... + 26275677.

Almost surely, 2^814545522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 814545522

814545522 is an abundant number, since it is smaller than the sum of its proper divisors (1306874493).

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

814545522 is an frugal number, since it uses more digits than its factorization.

814545522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146 (or 43 counting only the distinct ones).

The product of its digits is 64000, while the sum is 36.

The square root of 814545522 is about 28540.2439022514. The cubic root of 814545522 is about 933.9102031001.

The spelling of 814545522 in words is "eight hundred fourteen million, five hundred forty-five thousand, five hundred twenty-two".