122640046 has 8 divisors (see below), whose sum is σ = 185023944. Its totient is φ = 60965400.

The previous prime is 122640019. The next prime is 122640103. The reversal of 122640046 is 640046221.

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

It is a self number, because there is not a number n which added to its sum of digits gives 122640046.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176880 + ... + 177571.

It is an arithmetic number, because the mean of its divisors is an integer number (23127993).

Almost surely, 2^122640046 is an apocalyptic number.

122640046 is a deficient number, since it is larger than the sum of its proper divisors (62383898).

122640046 is a wasteful number, since it uses less digits than its factorization.

122640046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354626.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 122640046 is about 11074.2966368072. The cubic root of 122640046 is about 496.8333820659.

Adding to 122640046 its reverse (640046221), we get a palindrome (762686267).

The spelling of 122640046 in words is "one hundred twenty-two million, six hundred forty thousand, forty-six".