122478841 has 6 divisors (see below), whose sum is σ = 128036090. Its totient is φ = 117153168.

The previous prime is 122478827. The next prime is 122478847. The reversal of 122478841 is 148874221.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 108076816 + 14402025 = 10396^2 + 3795^2 .

It is not a de Polignac number, because 122478841 - 2⁵ = 122478809 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122478841.

It is not an unprimeable number, because it can be changed into a prime (122478847) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 115236 + ... + 116293.

Almost surely, 2^122478841 is an apocalyptic number.

It is an amenable number.

122478841 is a deficient number, since it is larger than the sum of its proper divisors (5557249).

122478841 is an equidigital number, since it uses as much as digits as its factorization.

122478841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231575 (or 231552 counting only the distinct ones).

The product of its digits is 28672, while the sum is 37.

The square root of 122478841 is about 11067.0159031240. The cubic root of 122478841 is about 496.6155980003.

The spelling of 122478841 in words is "one hundred twenty-two million, four hundred seventy-eight thousand, eight hundred forty-one".