121607707 has 16 divisors (see below), whose sum is σ = 133934080. Its totient is φ = 109734912.

The previous prime is 121607683. The next prime is 121607711. The reversal of 121607707 is 707706121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121607707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121607207) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 120019 + ... + 121027.

It is an arithmetic number, because the mean of its divisors is an integer number (8370880).

Almost surely, 2^121607707 is an apocalyptic number.

121607707 is a deficient number, since it is larger than the sum of its proper divisors (12326373).

121607707 is a wasteful number, since it uses less digits than its factorization.

121607707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222.

The product of its (nonzero) digits is 4116, while the sum is 31.

The square root of 121607707 is about 11027.5884489765. The cubic root of 121607707 is about 495.4353982975.

The spelling of 121607707 in words is "one hundred twenty-one million, six hundred seven thousand, seven hundred seven".