145055200 has 72 divisors (see below), whose sum is σ = 365601600. Its totient is φ = 56140800.

The previous prime is 145055191. The next prime is 145055233. The reversal of 145055200 is 2550541.

It is a super-2 number, since 2×145055200² = 42082022094080000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21876 + ... + 27724.

It is an arithmetic number, because the mean of its divisors is an integer number (5077800).

Almost surely, 2^145055200 is an apocalyptic number.

145055200 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 145055200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182800800).

145055200 is an abundant number, since it is smaller than the sum of its proper divisors (220546400).

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

145055200 is a wasteful number, since it uses less digits than its factorization.

145055200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5900 (or 5887 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 145055200 is about 12043.8864159373. The cubic root of 145055200 is about 525.4254450099.

The spelling of 145055200 in words is "one hundred forty-five million, fifty-five thousand, two hundred".