145523300 has 144 divisors (see below), whose sum is σ = 368643072. Its totient is φ = 49420800.

The previous prime is 145523297. The next prime is 145523311. The reversal of 145523300 is 3325541.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 926822 + ... + 926978.

Almost surely, 2^145523300 is an apocalyptic number.

145523300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145523300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184321536).

145523300 is an abundant number, since it is smaller than the sum of its proper divisors (223119772).

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

145523300 is a wasteful number, since it uses less digits than its factorization.

145523300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238 (or 231 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 145523300 is about 12063.3038592253. The cubic root of 145523300 is about 525.9900290630.

Adding to 145523300 its reverse (3325541), we get a palindrome (148848841).

The spelling of 145523300 in words is "one hundred forty-five million, five hundred twenty-three thousand, three hundred".