121609702 has 16 divisors (see below), whose sum is σ = 189170640. Its totient is φ = 58563232.

The previous prime is 121609699. The next prime is 121609703. The reversal of 121609702 is 207906121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121609703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23328 + ... + 28060.

It is an arithmetic number, because the mean of its divisors is an integer number (11823165).

Almost surely, 2^121609702 is an apocalyptic number.

121609702 is a deficient number, since it is larger than the sum of its proper divisors (67560938).

121609702 is a wasteful number, since it uses less digits than its factorization.

121609702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5207.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 121609702 is about 11027.6789035590. The cubic root of 121609702 is about 495.4381075233.

The spelling of 121609702 in words is "one hundred twenty-one million, six hundred nine thousand, seven hundred two".