121936942 has 8 divisors (see below), whose sum is σ = 184960800. Its totient is φ = 60283344.

The previous prime is 121936939. The next prime is 121936943. The reversal of 121936942 is 249639121.

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

It is a super-2 number, since 2×121936942² = 29737235648622728, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121936943) 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, 342342 + ... + 342697.

It is an arithmetic number, because the mean of its divisors is an integer number (23120100).

Almost surely, 2^121936942 is an apocalyptic number.

121936942 is a deficient number, since it is larger than the sum of its proper divisors (63023858).

121936942 is an equidigital number, since it uses as much as digits as its factorization.

121936942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685130.

The product of its digits is 23328, while the sum is 37.

The square root of 121936942 is about 11042.5061467042. The cubic root of 121936942 is about 495.8821015955.

The spelling of 121936942 in words is "one hundred twenty-one million, nine hundred thirty-six thousand, nine hundred forty-two".