121128874 has 8 divisors (see below), whose sum is σ = 181776420. Its totient is φ = 60536736.

The previous prime is 121128871. The next prime is 121128877. The reversal of 121128874 is 478821121.

It is an interprime number because it is at equal distance from previous prime (121128871) and next prime (121128877).

It can be written as a sum of positive squares in 2 ways, for example, as 112678225 + 8450649 = 10615^2 + 2907^2 .

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

It is not an unprimeable number, because it can be changed into a prime (121128871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7869 + ... + 17440.

Almost surely, 2^121128874 is an apocalyptic number.

121128874 is a deficient number, since it is larger than the sum of its proper divisors (60647546).

121128874 is a wasteful number, since it uses less digits than its factorization.

121128874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27704.

The product of its digits is 7168, while the sum is 34.

The square root of 121128874 is about 11005.8563501438. The cubic root of 121128874 is about 494.7842803872.

Adding to 121128874 its reverse (478821121), we get a palindrome (599949995).

The spelling of 121128874 in words is "one hundred twenty-one million, one hundred twenty-eight thousand, eight hundred seventy-four".