145002500 has 60 divisors (see below), whose sum is σ = 327495168. Its totient is φ = 56100000.

The previous prime is 145002499. The next prime is 145002521. The reversal of 145002500 is 5200541.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 76565 + ... + 78435.

Almost surely, 2^145002500 is an apocalyptic number.

145002500 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 145002500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163747584).

145002500 is an abundant number, since it is smaller than the sum of its proper divisors (182492668).

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

145002500 is a wasteful number, since it uses less digits than its factorization.

145002500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1926 (or 1909 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 145002500 is about 12041.6983851947. The cubic root of 145002500 is about 525.3618065353.

The spelling of 145002500 in words is "one hundred forty-five million, two thousand, five hundred".