122651629 has 4 divisors (see below), whose sum is σ = 122723584. Its totient is φ = 122579676.

The previous prime is 122651621. The next prime is 122651657. The reversal of 122651629 is 926156221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 926156221 = 18979 ⋅48799.

It is a cyclic number.

It is not a de Polignac number, because 122651629 - 2³ = 122651621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122651594 and 122651603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122651621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33357 + ... + 36850.

It is an arithmetic number, because the mean of its divisors is an integer number (30680896).

Almost surely, 2^122651629 is an apocalyptic number.

It is an amenable number.

122651629 is a deficient number, since it is larger than the sum of its proper divisors (71955).

122651629 is an equidigital number, since it uses as much as digits as its factorization.

122651629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71954.

The product of its digits is 12960, while the sum is 34.

The square root of 122651629 is about 11074.8195922101. The cubic root of 122651629 is about 496.8490230687.

The spelling of 122651629 in words is "one hundred twenty-two million, six hundred fifty-one thousand, six hundred twenty-nine".