147204309 has 64 divisors (see below), whose sum is σ = 248209920. Its totient is φ = 75694080.

The previous prime is 147204289. The next prime is 147204331. The reversal of 147204309 is 903402741.

It is a happy number.

It is not a de Polignac number, because 147204309 - 2¹³ = 147196117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147204349) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1302637 + ... + 1302749.

It is an arithmetic number, because the mean of its divisors is an integer number (3878280).

Almost surely, 2^147204309 is an apocalyptic number.

It is an amenable number.

147204309 is a deficient number, since it is larger than the sum of its proper divisors (101005611).

147204309 is a wasteful number, since it uses less digits than its factorization.

147204309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 147204309 is about 12132.7782885867. The cubic root of 147204309 is about 528.0076007572.

The spelling of 147204309 in words is "one hundred forty-seven million, two hundred four thousand, three hundred nine".