121161078 has 12 divisors (see below), whose sum is σ = 262515708. Its totient is φ = 40387020.

The previous prime is 121161077. The next prime is 121161121. The reversal of 121161078 is 870161121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121161071) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3365568 + ... + 3365603.

It is an arithmetic number, because the mean of its divisors is an integer number (21876309).

Almost surely, 2^121161078 is an apocalyptic number.

121161078 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

121161078 is an abundant number, since it is smaller than the sum of its proper divisors (141354630).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121161078 is a wasteful number, since it uses less digits than its factorization.

121161078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6731179 (or 6731176 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 27.

The square root of 121161078 is about 11007.3192921801. The cubic root of 121161078 is about 494.8281252073.

The spelling of 121161078 in words is "one hundred twenty-one million, one hundred sixty-one thousand, seventy-eight".