145998600 has 144 divisors (see below), whose sum is σ = 497728560. Its totient is φ = 35376000.

The previous prime is 145998563. The next prime is 145998617. The reversal of 145998600 is 6899541.

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, 71595 + ... + 73605.

Almost surely, 2^145998600 is an apocalyptic number.

145998600 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 145998600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248864280).

145998600 is an abundant number, since it is smaller than the sum of its proper divisors (351729960).

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

145998600 is a wasteful number, since it uses less digits than its factorization.

145998600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2052 (or 2032 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 145998600 is about 12082.9880410435. The cubic root of 145998600 is about 526.5620597313.

The spelling of 145998600 in words is "one hundred forty-five million, nine hundred ninety-eight thousand, six hundred".