147609 has 32 divisors (see below), whose sum is σ = 276480. Its totient is φ = 75600.

The previous prime is 147607. The next prime is 147613. The reversal of 147609 is 906741.

It is not a de Polignac number, because 147609 - 2¹ = 147607 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a nialpdrome in base 3.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 147609.

It is not an unprimeable number, because it can be changed into a prime (147607) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2044 + ... + 2114.

It is an arithmetic number, because the mean of its divisors is an integer number (8640).

2¹⁴⁷⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

147609 is a deficient number, since it is larger than the sum of its proper divisors (128871).

147609 is a wasteful number, since it uses less digits than its factorization.

147609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98 (or 92 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 147609 is about 384.1991670996. The cubic root of 147609 is about 52.8491020500.

The spelling of 147609 in words is "one hundred forty-seven thousand, six hundred nine".