145112250 has 64 divisors (see below), whose sum is σ = 364455936. Its totient is φ = 38456000.

The previous prime is 145112213. The next prime is 145112263. The reversal of 145112250 is 52211541.

145112250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142744 + ... + 143756.

It is an arithmetic number, because the mean of its divisors is an integer number (5694624).

Almost surely, 2^145112250 is an apocalyptic number.

145112250 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 145112250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182227968).

145112250 is an abundant number, since it is smaller than the sum of its proper divisors (219343686).

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

145112250 is a wasteful number, since it uses less digits than its factorization.

145112250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224 (or 1214 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 145112250 is about 12046.2546046479. The cubic root of 145112250 is about 525.4943190034.

Adding to 145112250 its reverse (52211541), we get a palindrome (197323791).

It can be divided in two parts, 14511 and 2250, that added together give a palindrome (16761).

The spelling of 145112250 in words is "one hundred forty-five million, one hundred twelve thousand, two hundred fifty".