145525544 has 16 divisors (see below), whose sum is σ = 272999220. Its totient is φ = 72725760.

The previous prime is 145525543. The next prime is 145525553. The reversal of 145525544 is 445525541.

It can be written as a sum of positive squares in 2 ways, for example, as 141372100 + 4153444 = 11890^2 + 2038^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (145525543) 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 3 ways as a sum of consecutive naturals, for example, 19454 + ... + 25874.

Almost surely, 2^145525544 is an apocalyptic number.

It is an amenable number.

145525544 is a deficient number, since it is larger than the sum of its proper divisors (127473676).

145525544 is a wasteful number, since it uses less digits than its factorization.

145525544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9260 (or 9256 counting only the distinct ones).

The product of its digits is 80000, while the sum is 35.

The square root of 145525544 is about 12063.3968682125. The cubic root of 145525544 is about 525.9927326749.

The spelling of 145525544 in words is "one hundred forty-five million, five hundred twenty-five thousand, five hundred forty-four".