121171715 has 32 divisors (see below), whose sum is σ = 177500160. Its totient is φ = 77616000.

The previous prime is 121171679. The next prime is 121171741. The reversal of 121171715 is 517171121.

It is not a de Polignac number, because 121171715 - 2⁶ = 121171651 is a prime.

It is a zygodrome in base 3.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29540 + ... + 33390.

It is an arithmetic number, because the mean of its divisors is an integer number (5546880).

Almost surely, 2^121171715 is an apocalyptic number.

121171715 is a deficient number, since it is larger than the sum of its proper divisors (56328445).

121171715 is a wasteful number, since it uses less digits than its factorization.

121171715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3923.

The product of its digits is 490, while the sum is 26.

The square root of 121171715 is about 11007.8024600735. The cubic root of 121171715 is about 494.8426054701.

The spelling of 121171715 in words is "one hundred twenty-one million, one hundred seventy-one thousand, seven hundred fifteen".