121677713 has 2 divisors, whose sum is σ = 121677714. Its totient is φ = 121677712.

The previous prime is 121677701. The next prime is 121677761. The reversal of 121677713 is 317776121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87478609 + 34199104 = 9353^2 + 5848^2 .

It is a cyclic number.

It is not a de Polignac number, because 121677713 - 2¹⁰ = 121676689 is a prime.

It is not a weakly prime, because it can be changed into another prime (121677113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60838856 + 60838857.

It is an arithmetic number, because the mean of its divisors is an integer number (60838857).

Almost surely, 2^121677713 is an apocalyptic number.

It is an amenable number.

121677713 is a deficient number, since it is larger than the sum of its proper divisors (1).

121677713 is an equidigital number, since it uses as much as digits as its factorization.

121677713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12348, while the sum is 35.

The square root of 121677713 is about 11030.7621223558. The cubic root of 121677713 is about 495.5304492830.

The spelling of 121677713 in words is "one hundred twenty-one million, six hundred seventy-seven thousand, seven hundred thirteen".