655228147 has 6 divisors (see below), whose sum is σ = 762204228. Its totient is φ = 561624084.

The previous prime is 655228139. The next prime is 655228151. The reversal of 655228147 is 741822556.

It is not a de Polignac number, because 655228147 - 2³ = 655228139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (655228187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6685953 + ... + 6686050.

It is an arithmetic number, because the mean of its divisors is an integer number (127034038).

Almost surely, 2^655228147 is an apocalyptic number.

655228147 is a deficient number, since it is larger than the sum of its proper divisors (106976081).

655228147 is a wasteful number, since it uses less digits than its factorization.

655228147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13372017 (or 13372010 counting only the distinct ones).

The product of its digits is 134400, while the sum is 40.

The square root of 655228147 is about 25597.4246165508. The cubic root of 655228147 is about 868.5553807819. Note that the first 3 decimals are identical.

The spelling of 655228147 in words is "six hundred fifty-five million, two hundred twenty-eight thousand, one hundred forty-seven".