145472318 has 4 divisors (see below), whose sum is σ = 218208480. Its totient is φ = 72736158.

The previous prime is 145472293. The next prime is 145472329. The reversal of 145472318 is 813274541.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36368078 + ... + 36368081.

It is an arithmetic number, because the mean of its divisors is an integer number (54552120).

Almost surely, 2^145472318 is an apocalyptic number.

145472318 is a deficient number, since it is larger than the sum of its proper divisors (72736162).

145472318 is an equidigital number, since it uses as much as digits as its factorization.

145472318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72736161.

The product of its digits is 26880, while the sum is 35.

The square root of 145472318 is about 12061.1905714154. The cubic root of 145472318 is about 525.9285975355.

The spelling of 145472318 in words is "one hundred forty-five million, four hundred seventy-two thousand, three hundred eighteen".