121583117 has 4 divisors (see below), whose sum is σ = 121896060. Its totient is φ = 121270176.

The previous prime is 121583089. The next prime is 121583149. The reversal of 121583117 is 711385121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 711385121 = 109 ⋅6526469.

It can be written as a sum of positive squares in 2 ways, for example, as 80802121 + 40780996 = 8989^2 + 6386^2 .

It is a cyclic number.

It is not a de Polignac number, because 121583117 - 2¹⁴ = 121566733 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121583117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121583017) 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, 155888 + ... + 156665.

It is an arithmetic number, because the mean of its divisors is an integer number (30474015).

Almost surely, 2^121583117 is an apocalyptic number.

It is an amenable number.

121583117 is a deficient number, since it is larger than the sum of its proper divisors (312943).

121583117 is an equidigital number, since it uses as much as digits as its factorization.

121583117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312942.

The product of its digits is 1680, while the sum is 29.

The square root of 121583117 is about 11026.4734616286. The cubic root of 121583117 is about 495.4020024490.

The spelling of 121583117 in words is "one hundred twenty-one million, five hundred eighty-three thousand, one hundred seventeen".