629122745 has 8 divisors (see below), whose sum is σ = 755933640. Its totient is φ = 502640640.

The previous prime is 629122717. The next prime is 629122759. The reversal of 629122745 is 547221926.

It can be written as a sum of positive squares in 4 ways, for example, as 316969 + 628805776 = 563^2 + 25076^2 .

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

It is not a de Polignac number, because 629122745 - 2²⁰ = 628074169 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 629122699 and 629122708.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 77966 + ... + 85655.

It is an arithmetic number, because the mean of its divisors is an integer number (94491705).

Almost surely, 2^629122745 is an apocalyptic number.

It is an amenable number.

629122745 is a deficient number, since it is larger than the sum of its proper divisors (126810895).

629122745 is a wasteful number, since it uses less digits than its factorization.

629122745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164395.

The product of its digits is 60480, while the sum is 38.

The square root of 629122745 is about 25082.3193704251. The cubic root of 629122745 is about 856.8638000775.

The spelling of 629122745 in words is "six hundred twenty-nine million, one hundred twenty-two thousand, seven hundred forty-five".