145534222 has 8 divisors (see below), whose sum is σ = 218491272. Its totient is φ = 72703800.

The previous prime is 145534189. The next prime is 145534223. The reversal of 145534222 is 222435541.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145534223) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 28729 + ... + 33412.

It is an arithmetic number, because the mean of its divisors is an integer number (27311409).

Almost surely, 2^145534222 is an apocalyptic number.

145534222 is a deficient number, since it is larger than the sum of its proper divisors (72957050).

145534222 is a wasteful number, since it uses less digits than its factorization.

145534222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63314.

The product of its digits is 9600, while the sum is 28.

The square root of 145534222 is about 12063.7565459520. The cubic root of 145534222 is about 526.0031878249.

Adding to 145534222 its reverse (222435541), we get a palindrome (367969763).

The spelling of 145534222 in words is "one hundred forty-five million, five hundred thirty-four thousand, two hundred twenty-two".