121140564 has 24 divisors (see below), whose sum is σ = 282840768. Its totient is φ = 40354560.

The previous prime is 121140559. The next prime is 121140581. The reversal of 121140564 is 465041121.

It is a happy number.

It is a super-3 number, since 3×121140564³ (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, 31684 + ... + 35300.

It is an arithmetic number, because the mean of its divisors is an integer number (11785032).

Almost surely, 2^121140564 is an apocalyptic number.

It is an amenable number.

121140564 is an abundant number, since it is smaller than the sum of its proper divisors (161700204).

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

121140564 is a wasteful number, since it uses less digits than its factorization.

121140564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6415 (or 6413 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 121140564 is about 11006.3874182222. The cubic root of 121140564 is about 494.8001968845.

Adding to 121140564 its reverse (465041121), we get a palindrome (586181685).

The spelling of 121140564 in words is "one hundred twenty-one million, one hundred forty thousand, five hundred sixty-four".