121352142 has 32 divisors (see below), whose sum is σ = 249363072. Its totient is φ = 39356064.

The previous prime is 121352131. The next prime is 121352201. The reversal of 121352142 is 241253121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31548 + ... + 35184.

It is an arithmetic number, because the mean of its divisors is an integer number (7792596).

Almost surely, 2^121352142 is an apocalyptic number.

121352142 is an abundant number, since it is smaller than the sum of its proper divisors (128010930).

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

121352142 is a wasteful number, since it uses less digits than its factorization.

121352142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3792.

The product of its digits is 480, while the sum is 21.

The square root of 121352142 is about 11015.9948257068. The cubic root of 121352142 is about 495.0880936979.

The spelling of 121352142 in words is "one hundred twenty-one million, three hundred fifty-two thousand, one hundred forty-two".