121648707 has 12 divisors (see below), whose sum is σ = 181774320. Its totient is φ = 78302448.

The previous prime is 121648699. The next prime is 121648717. The reversal of 121648707 is 707846121.

121648707 is a `hidden beast` number, since 1 + 2 + 1 + 648 + 7 + 0 + 7 = 666.

It is not a de Polignac number, because 121648707 - 2³ = 121648699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121648717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 232783 + ... + 233304.

It is an arithmetic number, because the mean of its divisors is an integer number (15147860).

Almost surely, 2^121648707 is an apocalyptic number.

121648707 is a deficient number, since it is larger than the sum of its proper divisors (60125613).

121648707 is a wasteful number, since it uses less digits than its factorization.

121648707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466122 (or 466119 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 121648707 is about 11029.4472662958. The cubic root of 121648707 is about 495.4910706707.

The spelling of 121648707 in words is "one hundred twenty-one million, six hundred forty-eight thousand, seven hundred seven".