121601713 has 4 divisors (see below), whose sum is σ = 126888768. Its totient is φ = 116314660.

The previous prime is 121601707. The next prime is 121601741. The reversal of 121601713 is 317106121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121601713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121601743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2643493 + ... + 2643538.

It is an arithmetic number, because the mean of its divisors is an integer number (31722192).

Almost surely, 2^121601713 is an apocalyptic number.

It is an amenable number.

121601713 is a deficient number, since it is larger than the sum of its proper divisors (5287055).

121601713 is an equidigital number, since it uses as much as digits as its factorization.

121601713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5287054.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 121601713 is about 11027.3166726997. The cubic root of 121601713 is about 495.4272582197.

Adding to 121601713 its reverse (317106121), we get a palindrome (438707834).

The spelling of 121601713 in words is "one hundred twenty-one million, six hundred one thousand, seven hundred thirteen".