121401159 has 8 divisors (see below), whose sum is σ = 176583552. Its totient is φ = 73576440.

The previous prime is 121401149. The next prime is 121401187. The reversal of 121401159 is 951104121.

It is a happy number.

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

It is not a de Polignac number, because 121401159 - 2¹¹ = 121399111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121401109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1839379 + ... + 1839444.

It is an arithmetic number, because the mean of its divisors is an integer number (22072944).

Almost surely, 2^121401159 is an apocalyptic number.

121401159 is a deficient number, since it is larger than the sum of its proper divisors (55182393).

121401159 is a wasteful number, since it uses less digits than its factorization.

121401159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3678837.

The product of its (nonzero) digits is 360, while the sum is 24.

The square root of 121401159 is about 11018.2194115020. The cubic root of 121401159 is about 495.1547439879.

The spelling of 121401159 in words is "one hundred twenty-one million, four hundred one thousand, one hundred fifty-nine".