121609514 has 8 divisors (see below), whose sum is σ = 196446180. Its totient is φ = 56127456.

The previous prime is 121609513. The next prime is 121609549. The reversal of 121609514 is 415906121.

It can be written as a sum of positive squares in 2 ways, for example, as 121374289 + 235225 = 11017^2 + 485^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121609513) 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 3 ways as a sum of consecutive naturals, for example, 2338619 + ... + 2338670.

Almost surely, 2^121609514 is an apocalyptic number.

121609514 is a deficient number, since it is larger than the sum of its proper divisors (74836666).

121609514 is a wasteful number, since it uses less digits than its factorization.

121609514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4677304.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 121609514 is about 11027.6703795498. The cubic root of 121609514 is about 495.4378522191.

The spelling of 121609514 in words is "one hundred twenty-one million, six hundred nine thousand, five hundred fourteen".