122646261 has 16 divisors (see below), whose sum is σ = 170108928. Its totient is φ = 78514800.

The previous prime is 122646241. The next prime is 122646269. The reversal of 122646261 is 162646221.

It is not a de Polignac number, because 122646261 - 2⁹ = 122645749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122646269) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 7150 + ... + 17216.

It is an arithmetic number, because the mean of its divisors is an integer number (10631808).

Almost surely, 2^122646261 is an apocalyptic number.

It is an amenable number.

122646261 is a deficient number, since it is larger than the sum of its proper divisors (47462667).

122646261 is a wasteful number, since it uses less digits than its factorization.

122646261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10232.

The product of its digits is 6912, while the sum is 30.

The square root of 122646261 is about 11074.5772379807. The cubic root of 122646261 is about 496.8417745593.

The spelling of 122646261 in words is "one hundred twenty-two million, six hundred forty-six thousand, two hundred sixty-one".