121149601 has 8 divisors (see below), whose sum is σ = 124182144. Its totient is φ = 118153200.

The previous prime is 121149593. The next prime is 121149647. The reversal of 121149601 is 106941121.

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

It is a cyclic number.

It is not a de Polignac number, because 121149601 - 2³ = 121149593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121149001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2185 + ... + 15718.

It is an arithmetic number, because the mean of its divisors is an integer number (15522768).

Almost surely, 2^121149601 is an apocalyptic number.

It is an amenable number.

121149601 is a deficient number, since it is larger than the sum of its proper divisors (3032543).

121149601 is a wasteful number, since it uses less digits than its factorization.

121149601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18071.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 121149601 is about 11006.7979449066. The cubic root of 121149601 is about 494.8125004929.

The spelling of 121149601 in words is "one hundred twenty-one million, one hundred forty-nine thousand, six hundred one".