145322544 has 80 divisors (see below), whose sum is σ = 391086080. Its totient is φ = 46448640.

The previous prime is 145322539. The next prime is 145322561. The reversal of 145322544 is 445223541.

It is a super-2 number, since 2×145322544² = 42237283589263872, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 188592 + ... + 189360.

It is an arithmetic number, because the mean of its divisors is an integer number (4888576).

Almost surely, 2^145322544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145322544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195543040).

145322544 is an abundant number, since it is smaller than the sum of its proper divisors (245763536).

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

145322544 is a wasteful number, since it uses less digits than its factorization.

145322544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938 (or 932 counting only the distinct ones).

The product of its digits is 19200, while the sum is 30.

The square root of 145322544 is about 12054.9800497554. The cubic root of 145322544 is about 525.7480420421.

The spelling of 145322544 in words is "one hundred forty-five million, three hundred twenty-two thousand, five hundred forty-four".