123282636146 has 4 divisors (see below), whose sum is σ = 184923954222. Its totient is φ = 61641318072.

The previous prime is 123282636097. The next prime is 123282636199. The reversal of 123282636146 is 641636282321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 641636282321 = 31 ⋅20697944591.

It can be written as a sum of positive squares in only one way, i.e., 91957530025 + 31325106121 = 303245^2 + 176989^2 .

It is a junction number, because it is equal to n+sod(n) for n = 123282636097 and 123282636106.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30820659035 + ... + 30820659038.

Almost surely, 2^123282636146 is an apocalyptic number.

123282636146 is a deficient number, since it is larger than the sum of its proper divisors (61641318076).

123282636146 is an equidigital number, since it uses as much as digits as its factorization.

123282636146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61641318075.

The product of its digits is 497664, while the sum is 44.

The spelling of 123282636146 in words is "one hundred twenty-three billion, two hundred eighty-two million, six hundred thirty-six thousand, one hundred forty-six".