121242734 has 4 divisors (see below), whose sum is σ = 181864104. Its totient is φ = 60621366.

The previous prime is 121242713. The next prime is 121242749. The reversal of 121242734 is 437242121.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30310682 + ... + 30310685.

It is an arithmetic number, because the mean of its divisors is an integer number (45466026).

Almost surely, 2^121242734 is an apocalyptic number.

121242734 is a deficient number, since it is larger than the sum of its proper divisors (60621370).

121242734 is an equidigital number, since it uses as much as digits as its factorization.

121242734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60621369.

The product of its digits is 2688, while the sum is 26.

The square root of 121242734 is about 11011.0278357654. The cubic root of 121242734 is about 494.9392626902.

Adding to 121242734 its reverse (437242121), we get a palindrome (558484855).

The spelling of 121242734 in words is "one hundred twenty-one million, two hundred forty-two thousand, seven hundred thirty-four".