121606715 has 8 divisors (see below), whose sum is σ = 150960240. Its totient is φ = 93930592.

The previous prime is 121606699. The next prime is 121606747. The reversal of 121606715 is 517606121.

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

It is a cyclic number.

It is not a de Polignac number, because 121606715 - 2⁴ = 121606699 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 419189 + ... + 419478.

It is an arithmetic number, because the mean of its divisors is an integer number (18870030).

Almost surely, 2^121606715 is an apocalyptic number.

121606715 is a deficient number, since it is larger than the sum of its proper divisors (29353525).

121606715 is an equidigital number, since it uses as much as digits as its factorization.

121606715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838701.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 121606715 is about 11027.5434707826. The cubic root of 121606715 is about 495.4340511426.

The spelling of 121606715 in words is "one hundred twenty-one million, six hundred six thousand, seven hundred fifteen".