121140164 has 24 divisors (see below), whose sum is σ = 225556128. Its totient is φ = 56730240.

The previous prime is 121140161. The next prime is 121140169. The reversal of 121140164 is 461041121.

It is a super-3 number, since 3×121140164³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (121140161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10127 + ... + 18569.

It is an arithmetic number, because the mean of its divisors is an integer number (9398172).

Almost surely, 2^121140164 is an apocalyptic number.

It is an amenable number.

121140164 is a deficient number, since it is larger than the sum of its proper divisors (104415964).

121140164 is a wasteful number, since it uses less digits than its factorization.

121140164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8675 (or 8673 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 121140164 is about 11006.3692469406. The cubic root of 121140164 is about 494.7996522822.

Adding to 121140164 its reverse (461041121), we get a palindrome (582181285).

The spelling of 121140164 in words is "one hundred twenty-one million, one hundred forty thousand, one hundred sixty-four".