121536249 has 8 divisors (see below), whose sum is σ = 162539232. Its totient is φ = 80778720.

The previous prime is 121536221. The next prime is 121536257. The reversal of 121536249 is 942635121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121536249 - 2⁸ = 121535993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121536269) 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, 60204 + ... + 62189.

It is an arithmetic number, because the mean of its divisors is an integer number (20317404).

Almost surely, 2^121536249 is an apocalyptic number.

It is an amenable number.

121536249 is a deficient number, since it is larger than the sum of its proper divisors (41002983).

121536249 is a wasteful number, since it uses less digits than its factorization.

121536249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122727.

The product of its digits is 12960, while the sum is 33.

The square root of 121536249 is about 11024.3480079323. The cubic root of 121536249 is about 495.3383382229.

The spelling of 121536249 in words is "one hundred twenty-one million, five hundred thirty-six thousand, two hundred forty-nine".