121142045 has 8 divisors (see below), whose sum is σ = 147834720. Its totient is φ = 95270800.

The previous prime is 121142011. The next prime is 121142057. The reversal of 121142045 is 540241121.

It is a happy number.

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

It is not a de Polignac number, because 121142045 - 2⁶ = 121141981 is a prime.

It is a super-3 number, since 3×121142045³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205031 + ... + 205620.

It is an arithmetic number, because the mean of its divisors is an integer number (18479340).

Almost surely, 2^121142045 is an apocalyptic number.

It is an amenable number.

121142045 is a deficient number, since it is larger than the sum of its proper divisors (26692675).

121142045 is an equidigital number, since it uses as much as digits as its factorization.

121142045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410715.

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

The square root of 121142045 is about 11006.4546971311. The cubic root of 121142045 is about 494.8022132641.

Adding to 121142045 its reverse (540241121), we get a palindrome (661383166).

The spelling of 121142045 in words is "one hundred twenty-one million, one hundred forty-two thousand, forty-five".