145583250 has 64 divisors (see below), whose sum is σ = 365040000. Its totient is φ = 38644800.

The previous prime is 145583239. The next prime is 145583303. The reversal of 145583250 is 52385541.

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 31 ways as a sum of consecutive naturals, for example, 291501 + ... + 291999.

It is an arithmetic number, because the mean of its divisors is an integer number (5703750).

Almost surely, 2^145583250 is an apocalyptic number.

145583250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 145583250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182520000).

145583250 is an abundant number, since it is smaller than the sum of its proper divisors (219456750).

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

145583250 is a wasteful number, since it uses less digits than its factorization.

145583250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908 (or 898 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

The square root of 145583250 is about 12065.7884118693. The cubic root of 145583250 is about 526.0622483642.

The spelling of 145583250 in words is "one hundred forty-five million, five hundred eighty-three thousand, two hundred fifty".