145660928 has 66 divisors (see below), whose sum is σ = 338835816. Its totient is φ = 62404608.

The previous prime is 145660903. The next prime is 145660937. The reversal of 145660928 is 829066541.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 48725 + ... + 51627.

It is an arithmetic number, because the mean of its divisors is an integer number (5133876).

Almost surely, 2^145660928 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 145660928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169417908).

145660928 is an abundant number, since it is smaller than the sum of its proper divisors (193174888).

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

145660928 is an equidigital number, since it uses as much as digits as its factorization.

145660928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2937 (or 2912 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 145660928 is about 12069.0069185497. The cubic root of 145660928 is about 526.1557943770.

The spelling of 145660928 in words is "one hundred forty-five million, six hundred sixty thousand, nine hundred twenty-eight".