147573009 has 20 divisors (see below), whose sum is σ = 222521904. Its totient is φ = 97456824.

The previous prime is 147572993. The next prime is 147573017. The reversal of 147573009 is 900375741.

It is a happy number.

It is not a de Polignac number, because 147573009 - 2⁴ = 147572993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (147573059) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 154 + ... + 17180.

Almost surely, 2^147573009 is an apocalyptic number.

It is an amenable number.

147573009 is a deficient number, since it is larger than the sum of its proper divisors (74948895).

147573009 is a wasteful number, since it uses less digits than its factorization.

147573009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17146 (or 17137 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 147573009 is about 12147.9631626047. The cubic root of 147573009 is about 528.4480636199.

It can be divided in two parts, 14757 and 3009, that added together give a triangular number (17766 = T₁₈₈).

The spelling of 147573009 in words is "one hundred forty-seven million, five hundred seventy-three thousand, nine".