145505300 has 18 divisors (see below), whose sum is σ = 315746718. Its totient is φ = 58202080.

The previous prime is 145505293. The next prime is 145505309. The reversal of 145505300 is 3505541.

It can be written as a sum of positive squares in 3 ways, for example, as 13456 + 145491844 = 116^2 + 12062^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145505309) 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 5 ways as a sum of consecutive naturals, for example, 727427 + ... + 727626.

Almost surely, 2^145505300 is an apocalyptic number.

145505300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145505300 is an abundant number, since it is smaller than the sum of its proper divisors (170241418).

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

145505300 is a wasteful number, since it uses less digits than its factorization.

145505300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455067 (or 1455060 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 145505300 is about 12062.5577718824. The cubic root of 145505300 is about 525.9683413312.

The spelling of 145505300 in words is "one hundred forty-five million, five hundred five thousand, three hundred".