121142134 has 16 divisors (see below), whose sum is σ = 183472128. Its totient is φ = 59987752.

The previous prime is 121142129. The next prime is 121142159. The reversal of 121142134 is 431241121.

It is a super-3 number, since 3×121142134³ (a number of 25 digits) contains 333 as substring.

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 7 ways as a sum of consecutive naturals, for example, 127449 + ... + 128395.

It is an arithmetic number, because the mean of its divisors is an integer number (11467008).

Almost surely, 2^121142134 is an apocalyptic number.

121142134 is a deficient number, since it is larger than the sum of its proper divisors (62329994).

121142134 is a wasteful number, since it uses less digits than its factorization.

121142134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1499.

The product of its digits is 192, while the sum is 19.

The square root of 121142134 is about 11006.4587402125. The cubic root of 121142134 is about 494.8023344370.

Adding to 121142134 its reverse (431241121), we get a palindrome (552383255).

The spelling of 121142134 in words is "one hundred twenty-one million, one hundred forty-two thousand, one hundred thirty-four".