122461278 has 8 divisors (see below), whose sum is σ = 244922568. Its totient is φ = 40820424.

The previous prime is 122461277. The next prime is 122461303. The reversal of 122461278 is 872164221.

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

122461278 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122461277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10205101 + ... + 10205112.

It is an arithmetic number, because the mean of its divisors is an integer number (30615321).

Almost surely, 2^122461278 is an apocalyptic number.

122461278 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.

122461278 is a wasteful number, since it uses less digits than its factorization.

122461278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20410218.

The product of its digits is 10752, while the sum is 33.

The square root of 122461278 is about 11066.2223906806. Note that the first 3 decimals coincide. The cubic root of 122461278 is about 496.5918592695.

The spelling of 122461278 in words is "one hundred twenty-two million, four hundred sixty-one thousand, two hundred seventy-eight".