121715607 has 16 divisors (see below), whose sum is σ = 179496800. Its totient is φ = 72876672.

The previous prime is 121715569. The next prime is 121715621. The reversal of 121715607 is 706517121.

It is not a de Polignac number, because 121715607 - 2⁶ = 121715543 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121715647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40732 + ... + 43617.

It is an arithmetic number, because the mean of its divisors is an integer number (11218550).

Almost surely, 2^121715607 is an apocalyptic number.

121715607 is a deficient number, since it is larger than the sum of its proper divisors (57781193).

121715607 is a wasteful number, since it uses less digits than its factorization.

121715607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84402.

The product of its (nonzero) digits is 2940, while the sum is 30.

The square root of 121715607 is about 11032.4796396821. The cubic root of 121715607 is about 495.5818848374.

The spelling of 121715607 in words is "one hundred twenty-one million, seven hundred fifteen thousand, six hundred seven".