121516735 has 8 divisors (see below), whose sum is σ = 146010096. Its totient is φ = 97086720.

The previous prime is 121516729. The next prime is 121516739. The reversal of 121516735 is 537615121.

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

It is not a de Polignac number, because 121516735 - 2⁷ = 121516607 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121516697 and 121516706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121516739) 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, 11506 + ... + 19375.

It is an arithmetic number, because the mean of its divisors is an integer number (18251262).

Almost surely, 2^121516735 is an apocalyptic number.

121516735 is a deficient number, since it is larger than the sum of its proper divisors (24493361).

121516735 is an equidigital number, since it uses as much as digits as its factorization.

121516735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31673.

The product of its digits is 6300, while the sum is 31.

The square root of 121516735 is about 11023.4629314023. The cubic root of 121516735 is about 495.3118261061.

The spelling of 121516735 in words is "one hundred twenty-one million, five hundred sixteen thousand, seven hundred thirty-five".