121865026 has 8 divisors (see below), whose sum is σ = 183149964. Its totient is φ = 60815040.

The previous prime is 121864987. The next prime is 121865041. The reversal of 121865026 is 620568121.

It can be written as a sum of positive squares in 2 ways, for example, as 110271001 + 11594025 = 10501^2 + 3405^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57435 + ... + 59518.

Almost surely, 2^121865026 is an apocalyptic number.

121865026 is a deficient number, since it is larger than the sum of its proper divisors (61284938).

121865026 is a wasteful number, since it uses less digits than its factorization.

121865026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117476.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 121865026 is about 11039.2493404217. The cubic root of 121865026 is about 495.7845952675.

The spelling of 121865026 in words is "one hundred twenty-one million, eight hundred sixty-five thousand, twenty-six".