656001229 has 8 divisors (see below), whose sum is σ = 711143552. Its totient is φ = 601527600.

The previous prime is 656001211. The next prime is 656001293. The reversal of 656001229 is 922100656.

656001229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 656001229 - 2¹⁷ = 655870157 is a prime.

It is a super-2 number, since 2×656001229² = 860675224899020882, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 656001229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656001209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165129 + ... + 169054.

It is an arithmetic number, because the mean of its divisors is an integer number (88892944).

Almost surely, 2^656001229 is an apocalyptic number.

It is an amenable number.

656001229 is a deficient number, since it is larger than the sum of its proper divisors (55142323).

656001229 is a wasteful number, since it uses less digits than its factorization.

656001229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334347.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 656001229 is about 25612.5209419143. The cubic root of 656001229 is about 868.8968397721.

The spelling of 656001229 in words is "six hundred fifty-six million, one thousand, two hundred twenty-nine".