145025300 has 108 divisors (see below), whose sum is σ = 387842364. Its totient is φ = 46771200.

The previous prime is 145025297. The next prime is 145025359. The reversal of 145025300 is 3520541.

It can be written as a sum of positive squares in 6 ways, for example, as 18957316 + 126067984 = 4354^2 + 11228^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 82430 + ... + 84170.

It is an arithmetic number, because the mean of its divisors is an integer number (3591133).

Almost surely, 2^145025300 is an apocalyptic number.

145025300 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 145025300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193921182).

145025300 is an abundant number, since it is smaller than the sum of its proper divisors (242817064).

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

145025300 is a wasteful number, since it uses less digits than its factorization.

145025300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1786 (or 1772 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 145025300 is about 12042.6450582918. The cubic root of 145025300 is about 525.3893408225.

Adding to 145025300 its reverse (3520541), we get a palindrome (148545841).

The spelling of 145025300 in words is "one hundred forty-five million, twenty-five thousand, three hundred".