121054142 has 8 divisors (see below), whose sum is σ = 198088632. Its totient is φ = 55024600.

The previous prime is 121054139. The next prime is 121054169. The reversal of 121054142 is 241450121.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2751209 + ... + 2751252.

It is an arithmetic number, because the mean of its divisors is an integer number (24761079).

Almost surely, 2^121054142 is an apocalyptic number.

121054142 is a deficient number, since it is larger than the sum of its proper divisors (77034490).

121054142 is a wasteful number, since it uses less digits than its factorization.

121054142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5502474.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 121054142 is about 11002.4607247652. The cubic root of 121054142 is about 494.6825049681.

The spelling of 121054142 in words is "one hundred twenty-one million, fifty-four thousand, one hundred forty-two".