145505660 has 12 divisors (see below), whose sum is σ = 305561928. Its totient is φ = 58202256.

The previous prime is 145505651. The next prime is 145505663. The reversal of 145505660 is 66505541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145505663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3637622 + ... + 3637661.

It is an arithmetic number, because the mean of its divisors is an integer number (25463494).

Almost surely, 2^145505660 is an apocalyptic number.

145505660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145505660 is an abundant number, since it is smaller than the sum of its proper divisors (160056268).

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

145505660 is a wasteful number, since it uses less digits than its factorization.

145505660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7275292 (or 7275290 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 145505660 is about 12062.5726940815. The cubic root of 145505660 is about 525.9687751034.

The spelling of 145505660 in words is "one hundred forty-five million, five hundred five thousand, six hundred sixty".