145225250 has 16 divisors (see below), whose sum is σ = 271862136. Its totient is φ = 58090000.

The previous prime is 145225231. The next prime is 145225273. The reversal of 145225250 is 52522541.

145225250 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 73839649 + 71385601 = 8593^2 + 8449^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290201 + ... + 290700.

Almost surely, 2^145225250 is an apocalyptic number.

145225250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145225250 is a deficient number, since it is larger than the sum of its proper divisors (126636886).

145225250 is an equidigital number, since it uses as much as digits as its factorization.

145225250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580918 (or 580908 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 145225250 is about 12050.9439464301. The cubic root of 145225250 is about 525.6306857385.

Adding to 145225250 its reverse (52522541), we get a palindrome (197747791).

The spelling of 145225250 in words is "one hundred forty-five million, two hundred twenty-five thousand, two hundred fifty".