121178061 has 12 divisors (see below), whose sum is σ = 175636188. Its totient is φ = 80507904.

The previous prime is 121178059. The next prime is 121178063. The reversal of 121178061 is 160871121.

It is an interprime number because it is at equal distance from previous prime (121178059) and next prime (121178063).

It can be written as a sum of positive squares in 2 ways, for example, as 80460900 + 40717161 = 8970^2 + 6381^2 .

It is not a de Polignac number, because 121178061 - 2¹ = 121178059 is a prime.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121178063) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20340 + ... + 25613.

It is an arithmetic number, because the mean of its divisors is an integer number (14636349).

Almost surely, 2^121178061 is an apocalyptic number.

It is an amenable number.

121178061 is a deficient number, since it is larger than the sum of its proper divisors (54458127).

121178061 is a wasteful number, since it uses less digits than its factorization.

121178061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46252 (or 46249 counting only the distinct ones).

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

The square root of 121178061 is about 11008.0907063850. The cubic root of 121178061 is about 494.8512439447.

The spelling of 121178061 in words is "one hundred twenty-one million, one hundred seventy-eight thousand, sixty-one".