121140535 has 4 divisors (see below), whose sum is σ = 145368648. Its totient is φ = 96912424.

The previous prime is 121140533. The next prime is 121140559. The reversal of 121140535 is 535041121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121140535 - 2¹ = 121140533 is a prime.

It is a super-3 number, since 3×121140535³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121140533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12114049 + ... + 12114058.

It is an arithmetic number, because the mean of its divisors is an integer number (36342162).

Almost surely, 2^121140535 is an apocalyptic number.

121140535 is a deficient number, since it is larger than the sum of its proper divisors (24228113).

121140535 is an equidigital number, since it uses as much as digits as its factorization.

121140535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24228112.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 121140535 is about 11006.3861008053. The cubic root of 121140535 is about 494.8001574009.

Adding to 121140535 its reverse (535041121), we get a palindrome (656181656).

The spelling of 121140535 in words is "one hundred twenty-one million, one hundred forty thousand, five hundred thirty-five".