655147 has 4 divisors (see below), whose sum is σ = 663520. Its totient is φ = 646776.

The previous prime is 655121. The next prime is 655157. The reversal of 655147 is 741556.

655147 is nontrivially palindromic in base 3.

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

It is a cyclic number.

It is not a de Polignac number, because 655147 - 2¹⁹ = 130859 is a prime.

It is a Duffinian number.

655147 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (655157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4068 + ... + 4225.

It is an arithmetic number, because the mean of its divisors is an integer number (165880).

2⁶⁵⁵¹⁴⁷ is an apocalyptic number.

655147 is a deficient number, since it is larger than the sum of its proper divisors (8373).

655147 is an equidigital number, since it uses as much as digits as its factorization.

655147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8372.

The product of its digits is 4200, while the sum is 28.

The square root of 655147 is about 809.4115146203. The cubic root of 655147 is about 86.8519523769.

The spelling of 655147 in words is "six hundred fifty-five thousand, one hundred forty-seven".