122456542 has 16 divisors (see below), whose sum is σ = 209451312. Its totient is φ = 53193600.

The previous prime is 122456533. The next prime is 122456549. The reversal of 122456542 is 245654221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122456549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138084 + ... + 138967.

It is an arithmetic number, because the mean of its divisors is an integer number (13090707).

Almost surely, 2^122456542 is an apocalyptic number.

122456542 is a deficient number, since it is larger than the sum of its proper divisors (86994770).

122456542 is a wasteful number, since it uses less digits than its factorization.

122456542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277083.

The product of its digits is 19200, while the sum is 31.

The square root of 122456542 is about 11066.0084041175. The cubic root of 122456542 is about 496.5854575470.

The spelling of 122456542 in words is "one hundred twenty-two million, four hundred fifty-six thousand, five hundred forty-two".