122561826 has 8 divisors (see below), whose sum is σ = 245123664. Its totient is φ = 40853940.

The previous prime is 122561809. The next prime is 122561839. The reversal of 122561826 is 628165221.

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

122561826 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10213480 + ... + 10213491.

It is an arithmetic number, because the mean of its divisors is an integer number (30640458).

Almost surely, 2^122561826 is an apocalyptic number.

122561826 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122561826 is a wasteful number, since it uses less digits than its factorization.

122561826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20426976.

The product of its digits is 11520, while the sum is 33.

The square root of 122561826 is about 11070.7644722485. The cubic root of 122561826 is about 496.7277325833.

The spelling of 122561826 in words is "one hundred twenty-two million, five hundred sixty-one thousand, eight hundred twenty-six".