122945629 has 4 divisors (see below), whose sum is σ = 123219900. Its totient is φ = 122671360.

The previous prime is 122945621. The next prime is 122945633. The reversal of 122945629 is 926549221.

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

It can be written as a sum of positive squares in 2 ways, for example, as 28408900 + 94536729 = 5330^2 + 9723^2 .

It is a cyclic number.

It is not a de Polignac number, because 122945629 - 2³ = 122945621 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122945591 and 122945600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122945621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136462 + ... + 137359.

It is an arithmetic number, because the mean of its divisors is an integer number (30804975).

Almost surely, 2^122945629 is an apocalyptic number.

It is an amenable number.

122945629 is a deficient number, since it is larger than the sum of its proper divisors (274271).

122945629 is an equidigital number, since it uses as much as digits as its factorization.

122945629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274270.

The product of its digits is 77760, while the sum is 40.

The square root of 122945629 is about 11088.0850014779. The cubic root of 122945629 is about 497.2456941246.

The spelling of 122945629 in words is "one hundred twenty-two million, nine hundred forty-five thousand, six hundred twenty-nine".