145575452 has 12 divisors (see below), whose sum is σ = 277916856. Its totient is φ = 66170640.

The previous prime is 145575449. The next prime is 145575457. The reversal of 145575452 is 254575541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145575457) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1654223 + ... + 1654310.

It is an arithmetic number, because the mean of its divisors is an integer number (23159738).

Almost surely, 2^145575452 is an apocalyptic number.

It is an amenable number.

145575452 is a deficient number, since it is larger than the sum of its proper divisors (132341404).

145575452 is a wasteful number, since it uses less digits than its factorization.

145575452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3308548 (or 3308546 counting only the distinct ones).

The product of its digits is 140000, while the sum is 38.

The square root of 145575452 is about 12065.4652624754. The cubic root of 145575452 is about 526.0528555559.

The spelling of 145575452 in words is "one hundred forty-five million, five hundred seventy-five thousand, four hundred fifty-two".