121352136 has 16 divisors (see below), whose sum is σ = 303380400. Its totient is φ = 40450704.

The previous prime is 121352131. The next prime is 121352201. The reversal of 121352136 is 631253121.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 5056339 = 121352136 / (1 + 2 + 1 + 3 + 5 + 2 + 1 + 3 + 6).

It is not an unprimeable number, because it can be changed into a prime (121352131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2528146 + ... + 2528193.

It is an arithmetic number, because the mean of its divisors is an integer number (18961275).

Almost surely, 2^121352136 is an apocalyptic number.

It is an amenable number.

121352136 is an abundant number, since it is smaller than the sum of its proper divisors (182028264).

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

121352136 is a wasteful number, since it uses less digits than its factorization.

121352136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5056348 (or 5056344 counting only the distinct ones).

The product of its digits is 1080, while the sum is 24.

The square root of 121352136 is about 11015.9945533756. The cubic root of 121352136 is about 495.0880855384.

The spelling of 121352136 in words is "one hundred twenty-one million, three hundred fifty-two thousand, one hundred thirty-six".