145884522 has 64 divisors (see below), whose sum is σ = 343056384. Its totient is φ = 40494720.

The previous prime is 145884517. The next prime is 145884533. The reversal of 145884522 is 225488541.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 519022 + ... + 519302.

It is an arithmetic number, because the mean of its divisors is an integer number (5360256).

Almost surely, 2^145884522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145884522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171528192).

145884522 is an abundant number, since it is smaller than the sum of its proper divisors (197171862).

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

145884522 is a wasteful number, since it uses less digits than its factorization.

145884522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603.

The product of its digits is 102400, while the sum is 39.

The square root of 145884522 is about 12078.2665146949. The cubic root of 145884522 is about 526.4248785101.

It can be divided in two parts, 14588 and 4522, that added together give a triangular number (19110 = T₁₉₅).

The spelling of 145884522 in words is "one hundred forty-five million, eight hundred eighty-four thousand, five hundred twenty-two".