121961194 has 8 divisors (see below), whose sum is σ = 183999780. Its totient is φ = 60627936.

The previous prime is 121961159. The next prime is 121961207. The reversal of 121961194 is 491169121.

It can be written as a sum of positive squares in 2 ways, for example, as 87890625 + 34070569 = 9375^2 + 5837^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175899 + ... + 176590.

Almost surely, 2^121961194 is an apocalyptic number.

121961194 is a deficient number, since it is larger than the sum of its proper divisors (62038586).

121961194 is a wasteful number, since it uses less digits than its factorization.

121961194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352664.

The product of its digits is 3888, while the sum is 34.

The square root of 121961194 is about 11043.6042123937. The cubic root of 121961194 is about 495.9149746946.

The spelling of 121961194 in words is "one hundred twenty-one million, nine hundred sixty-one thousand, one hundred ninety-four".