655274145 has 8 divisors (see below), whose sum is σ = 1048438656. Its totient is φ = 349479536.

The previous prime is 655274143. The next prime is 655274149. The reversal of 655274145 is 541472556.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 655274145 - 2¹ = 655274143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (655274143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21842457 + ... + 21842486.

It is an arithmetic number, because the mean of its divisors is an integer number (131054832).

Almost surely, 2^655274145 is an apocalyptic number.

It is an amenable number.

655274145 is a deficient number, since it is larger than the sum of its proper divisors (393164511).

655274145 is a wasteful number, since it uses less digits than its factorization.

655274145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43684951.

The product of its digits is 168000, while the sum is 39.

The square root of 655274145 is about 25598.3230896088. The cubic root of 655274145 is about 868.5757049370.

The spelling of 655274145 in words is "six hundred fifty-five million, two hundred seventy-four thousand, one hundred forty-five".