145845450 has 36 divisors (see below), whose sum is σ = 391839318. Its totient is φ = 38892000.

The previous prime is 145845419. The next prime is 145845467. The reversal of 145845450 is 54548541.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 70207641 + 75637809 = 8379^2 + 8697^2 .

It is a Curzon number.

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 17 ways as a sum of consecutive naturals, for example, 161601 + ... + 162500.

Almost surely, 2^145845450 is an apocalyptic number.

145845450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145845450 is an abundant number, since it is smaller than the sum of its proper divisors (245993868).

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

145845450 is a wasteful number, since it uses less digits than its factorization.

145845450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324119 (or 324111 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 36.

The square root of 145845450 is about 12076.6489557327. The cubic root of 145845450 is about 526.3778771579.

The spelling of 145845450 in words is "one hundred forty-five million, eight hundred forty-five thousand, four hundred fifty".