121544316 has 36 divisors (see below), whose sum is σ = 314386072. Its totient is φ = 39572064.

The previous prime is 121544299. The next prime is 121544321. The reversal of 121544316 is 613445121.

It is a happy number.

121544316 is a `hidden beast` number, since 1 + 215 + 443 + 1 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×121544316³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121544316.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37711 + ... + 40806.

Almost surely, 2^121544316 is an apocalyptic number.

It is an amenable number.

121544316 is an abundant number, since it is smaller than the sum of its proper divisors (192841756).

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

121544316 is a wasteful number, since it uses less digits than its factorization.

121544316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78570 (or 78565 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 121544316 is about 11024.7138738382. The cubic root of 121544316 is about 495.3492973840.

Adding to 121544316 its reverse (613445121), we get a palindrome (734989437).

The spelling of 121544316 in words is "one hundred twenty-one million, five hundred forty-four thousand, three hundred sixteen".