145548609 has 8 divisors (see below), whose sum is σ = 194820960. Its totient is φ = 96654336.

The previous prime is 145548587. The next prime is 145548617. The reversal of 145548609 is 906845541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-145548609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145548619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93619 + ... + 95160.

It is an arithmetic number, because the mean of its divisors is an integer number (24352620).

Almost surely, 2^145548609 is an apocalyptic number.

It is an amenable number.

145548609 is a deficient number, since it is larger than the sum of its proper divisors (49272351).

145548609 is a wasteful number, since it uses less digits than its factorization.

145548609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189039.

The product of its (nonzero) digits is 172800, while the sum is 42.

The square root of 145548609 is about 12064.3528214322. The cubic root of 145548609 is about 526.0205201939.

The spelling of 145548609 in words is "one hundred forty-five million, five hundred forty-eight thousand, six hundred nine".