121253436 has 30 divisors (see below), whose sum is σ = 316981280. Its totient is φ = 40417704.

The previous prime is 121253417. The next prime is 121253443. The reversal of 121253436 is 634352121.

121253436 is a `hidden beast` number, since 121 + 2 + 534 + 3 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 186796 + ... + 187443.

Almost surely, 2^121253436 is an apocalyptic number.

It is an amenable number.

121253436 is an abundant number, since it is smaller than the sum of its proper divisors (195727844).

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

121253436 is a wasteful number, since it uses less digits than its factorization.

121253436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374255 (or 374244 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 121253436 is about 11011.5137923902. The cubic root of 121253436 is about 494.9538248939.

The spelling of 121253436 in words is "one hundred twenty-one million, two hundred fifty-three thousand, four hundred thirty-six".