121136078 has 16 divisors (see below), whose sum is σ = 216691200. Its totient is φ = 49658136.

The previous prime is 121136051. The next prime is 121136107. The reversal of 121136078 is 870631121.

It is a self number, because there is not a number n which added to its sum of digits gives 121136078.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187778 + ... + 188421.

It is an arithmetic number, because the mean of its divisors is an integer number (13543200).

Almost surely, 2^121136078 is an apocalyptic number.

121136078 is a deficient number, since it is larger than the sum of its proper divisors (95555122).

121136078 is a wasteful number, since it uses less digits than its factorization.

121136078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376231.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 121136078 is about 11006.1836255807. The cubic root of 121136078 is about 494.7940891008.

Adding to 121136078 its reverse (870631121), we get a palindrome (991767199).

The spelling of 121136078 in words is "one hundred twenty-one million, one hundred thirty-six thousand, seventy-eight".