121601193 has 24 divisors (see below), whose sum is σ = 189057600. Its totient is φ = 69320160.

The previous prime is 121601177. The next prime is 121601209. The reversal of 121601193 is 391106121.

It is an interprime number because it is at equal distance from previous prime (121601177) and next prime (121601209).

It is not a de Polignac number, because 121601193 - 2⁴ = 121601177 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121601093) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87363 + ... + 88743.

It is an arithmetic number, because the mean of its divisors is an integer number (7877400).

Almost surely, 2^121601193 is an apocalyptic number.

It is an amenable number.

121601193 is a deficient number, since it is larger than the sum of its proper divisors (67456407).

121601193 is a wasteful number, since it uses less digits than its factorization.

121601193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1997 (or 1990 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 121601193 is about 11027.2930948624. The cubic root of 121601193 is about 495.4265520275.

The spelling of 121601193 in words is "one hundred twenty-one million, six hundred one thousand, one hundred ninety-three".