121749634 has 8 divisors (see below), whose sum is σ = 183429648. Its totient is φ = 60606420.

The previous prime is 121749613. The next prime is 121749637. The reversal of 121749634 is 436947121.

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

It is a junction number, because it is equal to n+sod(n) for n = 121749593 and 121749602.

It is not an unprimeable number, because it can be changed into a prime (121749637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133632 + ... + 134539.

It is an arithmetic number, because the mean of its divisors is an integer number (22928706).

Almost surely, 2^121749634 is an apocalyptic number.

121749634 is a deficient number, since it is larger than the sum of its proper divisors (61680014).

121749634 is a wasteful number, since it uses less digits than its factorization.

121749634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268400.

The product of its digits is 36288, while the sum is 37.

The square root of 121749634 is about 11034.0216603014. The cubic root of 121749634 is about 495.6280624094.

The spelling of 121749634 in words is "one hundred twenty-one million, seven hundred forty-nine thousand, six hundred thirty-four".