145500250 has 128 divisors (see below), whose sum is σ = 334264320. Its totient is φ = 46368000.

The previous prime is 145500247. The next prime is 145500281. The reversal of 145500250 is 52005541.

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 63 ways as a sum of consecutive naturals, for example, 2385220 + ... + 2385280.

It is an arithmetic number, because the mean of its divisors is an integer number (2611440).

Almost surely, 2^145500250 is an apocalyptic number.

145500250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145500250 is an abundant number, since it is smaller than the sum of its proper divisors (188764070).

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

145500250 is a wasteful number, since it uses less digits than its factorization.

145500250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161 (or 151 counting only the distinct ones).

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

The square root of 145500250 is about 12062.3484446438. The cubic root of 145500250 is about 525.9622563963.

Adding to 145500250 its reverse (52005541), we get a palindrome (197505791).

The spelling of 145500250 in words is "one hundred forty-five million, five hundred thousand, two hundred fifty".