121439046 has 8 divisors (see below), whose sum is σ = 242878104. Its totient is φ = 40479680.

The previous prime is 121438963. The next prime is 121439047. The reversal of 121439046 is 640934121.

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

121439046 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121439047) 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, 10119915 + ... + 10119926.

It is an arithmetic number, because the mean of its divisors is an integer number (30359763).

Almost surely, 2^121439046 is an apocalyptic number.

121439046 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121439046 is a wasteful number, since it uses less digits than its factorization.

121439046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20239846.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 121439046 is about 11019.9385660720. The cubic root of 121439046 is about 495.2062480997.

The spelling of 121439046 in words is "one hundred twenty-one million, four hundred thirty-nine thousand, forty-six".