145445152 has 48 divisors (see below), whose sum is σ = 303760800. Its totient is φ = 68359680.

The previous prime is 145445147. The next prime is 145445161. The reversal of 145445152 is 251544541.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83652 + ... + 85372.

It is an arithmetic number, because the mean of its divisors is an integer number (6328350).

Almost surely, 2^145445152 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 145445152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151880400).

145445152 is an abundant number, since it is smaller than the sum of its proper divisors (158315648).

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

145445152 is a wasteful number, since it uses less digits than its factorization.

145445152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1889 (or 1881 counting only the distinct ones).

The product of its digits is 16000, while the sum is 31.

The square root of 145445152 is about 12060.0643447703. The cubic root of 145445152 is about 525.8958575936.

Adding to 145445152 its reverse (251544541), we get a palindrome (396989693).

The spelling of 145445152 in words is "one hundred forty-five million, four hundred forty-five thousand, one hundred fifty-two".