145505352 has 64 divisors (see below), whose sum is σ = 375943680. Its totient is φ = 46904832.

The previous prime is 145505333. The next prime is 145505359. The reversal of 145505352 is 253505541.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (145505359) by changing a digit.

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, 92073 + ... + 93639.

It is an arithmetic number, because the mean of its divisors is an integer number (5874120).

Almost surely, 2^145505352 is an apocalyptic number.

145505352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145505352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187971840).

145505352 is an abundant number, since it is smaller than the sum of its proper divisors (230438328).

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

145505352 is a wasteful number, since it uses less digits than its factorization.

145505352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1702 (or 1698 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 145505352 is about 12062.5599273123. The cubic root of 145505352 is about 525.9684039872.

The spelling of 145505352 in words is "one hundred forty-five million, five hundred five thousand, three hundred fifty-two".