145438200 has 192 divisors, whose sum is σ = 523180800. Its totient is φ = 37065600.

The previous prime is 145438199. The next prime is 145438207. The reversal of 145438200 is 2834541.

145438200 is a `hidden beast` number, since 1 + 454 + 3 + 8 + 200 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145438207) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 123615 + ... + 124785.

It is an arithmetic number, because the mean of its divisors is an integer number (2724900).

Almost surely, 2^145438200 is an apocalyptic number.

145438200 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 145438200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261590400).

145438200 is an abundant number, since it is smaller than the sum of its proper divisors (377742600).

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

145438200 is a wasteful number, since it uses less digits than its factorization.

145438200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1219 (or 1204 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 145438200 is about 12059.7761173249. The cubic root of 145438200 is about 525.8874785215.

The spelling of 145438200 in words is "one hundred forty-five million, four hundred thirty-eight thousand, two hundred".