145044900 has 648 divisors, whose sum is σ = 648333504. Its totient is φ = 26611200.

The previous prime is 145044899. The next prime is 145044919. The reversal of 145044900 is 9440541.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 6306289 + ... + 6306311.

Almost surely, 2^145044900 is an apocalyptic number.

145044900 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 145044900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (324166752).

145044900 is an abundant number, since it is smaller than the sum of its proper divisors (503288604).

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

145044900 is a wasteful number, since it uses less digits than its factorization.

145044900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81 (or 64 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 145044900 is about 12043.4588055093. The cubic root of 145044900 is about 525.4130083417.

The spelling of 145044900 in words is "one hundred forty-five million, forty-four thousand, nine hundred".