145521068 has 48 divisors (see below), whose sum is σ = 327763968. Its totient is φ = 54864000.

The previous prime is 145521067. The next prime is 145521091. The reversal of 145521068 is 860125541.

145521068 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (145521067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1928 + ... + 17168.

It is an arithmetic number, because the mean of its divisors is an integer number (6828416).

Almost surely, 2^145521068 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 145521068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163881984).

145521068 is an abundant number, since it is smaller than the sum of its proper divisors (182242900).

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

145521068 is a wasteful number, since it uses less digits than its factorization.

145521068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15294 (or 15292 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 145521068 is about 12063.2113469010. The cubic root of 145521068 is about 525.9873398814.

The spelling of 145521068 in words is "one hundred forty-five million, five hundred twenty-one thousand, sixty-eight".