145125450 has 36 divisors (see below), whose sum is σ = 389904918. Its totient is φ = 38700000.

The previous prime is 145125443. The next prime is 145125451. The reversal of 145125450 is 54521541.

It can be written as a sum of positive squares in 3 ways, for example, as 77211369 + 67914081 = 8787^2 + 8241^2 .

It is a super-2 number, since 2×145125450² = 42122792475405000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145125451) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 160801 + ... + 161700.

Almost surely, 2^145125450 is an apocalyptic number.

145125450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145125450 is an abundant number, since it is smaller than the sum of its proper divisors (244779468).

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

145125450 is a wasteful number, since it uses less digits than its factorization.

145125450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322519 (or 322511 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 145125450 is about 12046.8024803265. The cubic root of 145125450 is about 525.5102522199.

Adding to 145125450 its reverse (54521541), we get a palindrome (199646991).

The spelling of 145125450 in words is "one hundred forty-five million, one hundred twenty-five thousand, four hundred fifty".