122456434 has 4 divisors (see below), whose sum is σ = 183684654. Its totient is φ = 61228216.

The previous prime is 122456431. The next prime is 122456443. The reversal of 122456434 is 434654221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 434654221 = 1039 ⋅418339.

It can be written as a sum of positive squares in only one way, i.e., 113486409 + 8970025 = 10653^2 + 2995^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 122456396 and 122456405.

It is not an unprimeable number, because it can be changed into a prime (122456431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30614107 + ... + 30614110.

Almost surely, 2^122456434 is an apocalyptic number.

122456434 is a deficient number, since it is larger than the sum of its proper divisors (61228220).

122456434 is an equidigital number, since it uses as much as digits as its factorization.

122456434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61228219.

The product of its digits is 23040, while the sum is 31.

The square root of 122456434 is about 11066.0035243081. The cubic root of 122456434 is about 496.5853115598.

The spelling of 122456434 in words is "one hundred twenty-two million, four hundred fifty-six thousand, four hundred thirty-four".