121465117 has 4 divisors (see below), whose sum is σ = 124747996. Its totient is φ = 118182240.

The previous prime is 121465109. The next prime is 121465147. The reversal of 121465117 is 711564121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 52142841 + 69322276 = 7221^2 + 8326^2 .

It is a cyclic number.

It is not a de Polignac number, because 121465117 - 2³ = 121465109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121465147) 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, 1641384 + ... + 1641457.

It is an arithmetic number, because the mean of its divisors is an integer number (31186999).

Almost surely, 2^121465117 is an apocalyptic number.

It is an amenable number.

121465117 is a deficient number, since it is larger than the sum of its proper divisors (3282879).

121465117 is an equidigital number, since it uses as much as digits as its factorization.

121465117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3282878.

The product of its digits is 1680, while the sum is 28.

The square root of 121465117 is about 11021.1214039226. The cubic root of 121465117 is about 495.2416831560.

The spelling of 121465117 in words is "one hundred twenty-one million, four hundred sixty-five thousand, one hundred seventeen".