145505508 has 48 divisors (see below), whose sum is σ = 347358144. Its totient is φ = 47393280.

The previous prime is 145505501. The next prime is 145505509. The reversal of 145505508 is 805505541.

It is not an unprimeable number, because it can be changed into a prime (145505501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109488 + ... + 110808.

It is an arithmetic number, because the mean of its divisors is an integer number (7236628).

Almost surely, 2^145505508 is an apocalyptic number.

It is an amenable number.

145505508 is an abundant number, since it is smaller than the sum of its proper divisors (201852636).

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

145505508 is a wasteful number, since it uses less digits than its factorization.

145505508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1532 (or 1530 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 33.

The square root of 145505508 is about 12062.5663935997. The cubic root of 145505508 is about 525.9685919552.

Adding to 145505508 its sum of digits (33), we get a palindrome (145505541).

The spelling of 145505508 in words is "one hundred forty-five million, five hundred five thousand, five hundred eight".