121361617 has 8 divisors (see below), whose sum is σ = 132352640. Its totient is φ = 110607120.

The previous prime is 121361563. The next prime is 121361629. The reversal of 121361617 is 716163121.

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

It is not a de Polignac number, because 121361617 - 2⁷ = 121361489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121361677) 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, 58059 + ... + 60112.

It is an arithmetic number, because the mean of its divisors is an integer number (16544080).

Almost surely, 2^121361617 is an apocalyptic number.

It is an amenable number.

121361617 is a deficient number, since it is larger than the sum of its proper divisors (10991023).

121361617 is a wasteful number, since it uses less digits than its factorization.

121361617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118263.

The product of its digits is 1512, while the sum is 28.

The square root of 121361617 is about 11016.4248737964. The cubic root of 121361617 is about 495.1009786170.

The spelling of 121361617 in words is "one hundred twenty-one million, three hundred sixty-one thousand, six hundred seventeen".