121516737 has 8 divisors (see below), whose sum is σ = 162106560. Its totient is φ = 80969040.

The previous prime is 121516729. The next prime is 121516739. The reversal of 121516737 is 737615121.

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

It is not a de Polignac number, because 121516737 - 2³ = 121516729 is a prime.

It is a super-3 number, since 3×121516737³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 121516698 and 121516707.

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, 3037 + ... + 15882.

It is an arithmetic number, because the mean of its divisors is an integer number (20263320).

Almost surely, 2^121516737 is an apocalyptic number.

It is an amenable number.

121516737 is a deficient number, since it is larger than the sum of its proper divisors (40589823).

121516737 is a wasteful number, since it uses less digits than its factorization.

121516737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21063.

The product of its digits is 8820, while the sum is 33.

The square root of 121516737 is about 11023.4630221179. The cubic root of 121516737 is about 495.3118288235.

The spelling of 121516737 in words is "one hundred twenty-one million, five hundred sixteen thousand, seven hundred thirty-seven".