145488388 has 6 divisors (see below), whose sum is σ = 254604686. Its totient is φ = 72744192.

The previous prime is 145488353. The next prime is 145488391. The reversal of 145488388 is 883884541.

It can be written as a sum of positive squares in only one way, i.e., 145154304 + 334084 = 12048^2 + 578^2 .

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 as a sum of consecutive naturals, namely, 18186045 + ... + 18186052.

Almost surely, 2^145488388 is an apocalyptic number.

It is an amenable number.

145488388 is a deficient number, since it is larger than the sum of its proper divisors (109116298).

145488388 is a wasteful number, since it uses less digits than its factorization.

145488388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36372101 (or 36372099 counting only the distinct ones).

The product of its digits is 983040, while the sum is 49.

The square root of 145488388 is about 12061.8567393250. The cubic root of 145488388 is about 525.9479628725.

The spelling of 145488388 in words is "one hundred forty-five million, four hundred eighty-eight thousand, three hundred eighty-eight".