122666746 has 4 divisors (see below), whose sum is σ = 184000122. Its totient is φ = 61333372.

The previous prime is 122666737. The next prime is 122666759. The reversal of 122666746 is 647666221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 647666221 = 17 ⋅38098013.

It can be written as a sum of positive squares in only one way, i.e., 102515625 + 20151121 = 10125^2 + 4489^2 .

It is a junction number, because it is equal to n+sod(n) for n = 122666699 and 122666708.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30666685 + ... + 30666688.

Almost surely, 2^122666746 is an apocalyptic number.

122666746 is a deficient number, since it is larger than the sum of its proper divisors (61333376).

122666746 is an equidigital number, since it uses as much as digits as its factorization.

122666746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61333375.

The product of its digits is 145152, while the sum is 40.

The square root of 122666746 is about 11075.5020653693. The cubic root of 122666746 is about 496.8694346963.

The spelling of 122666746 in words is "one hundred twenty-two million, six hundred sixty-six thousand, seven hundred forty-six".