121710506 has 16 divisors (see below), whose sum is σ = 189388800. Its totient is φ = 58592688.

The previous prime is 121710499. The next prime is 121710527. The reversal of 121710506 is 605017121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19475 + ... + 24953.

It is an arithmetic number, because the mean of its divisors is an integer number (11836800).

Almost surely, 2^121710506 is an apocalyptic number.

121710506 is a deficient number, since it is larger than the sum of its proper divisors (67678294).

121710506 is a wasteful number, since it uses less digits than its factorization.

121710506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5893.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 121710506 is about 11032.2484562305. The cubic root of 121710506 is about 495.5749615990.

Adding to 121710506 its reverse (605017121), we get a palindrome (726727627).

The spelling of 121710506 in words is "one hundred twenty-one million, seven hundred ten thousand, five hundred six".