121278734 has 8 divisors (see below), whose sum is σ = 185350680. Its totient is φ = 59495176.

The previous prime is 121278713. The next prime is 121278737. The reversal of 121278734 is 437872121.

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 = 121278694 and 121278703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121278737) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 571964 + ... + 572175.

It is an arithmetic number, because the mean of its divisors is an integer number (23168835).

Almost surely, 2^121278734 is an apocalyptic number.

121278734 is a deficient number, since it is larger than the sum of its proper divisors (64071946).

121278734 is a wasteful number, since it uses less digits than its factorization.

121278734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144194.

The product of its digits is 18816, while the sum is 35.

The square root of 121278734 is about 11012.6624392106. The cubic root of 121278734 is about 494.9882444578.

The spelling of 121278734 in words is "one hundred twenty-one million, two hundred seventy-eight thousand, seven hundred thirty-four".