121600135 has 12 divisors (see below), whose sum is σ = 150785064. Its totient is φ = 94138320.

The previous prime is 121600097. The next prime is 121600147. The reversal of 121600135 is 531006121.

It is not a de Polignac number, because 121600135 - 2⁷ = 121600007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 7849 + ... + 17458.

It is an arithmetic number, because the mean of its divisors is an integer number (12565422).

Almost surely, 2^121600135 is an apocalyptic number.

121600135 is a deficient number, since it is larger than the sum of its proper divisors (29184929).

121600135 is an equidigital number, since it uses as much as digits as its factorization.

121600135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25374 (or 25343 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 121600135 is about 11027.2451228763. The cubic root of 121600135 is about 495.4251151918.

Adding to 121600135 its reverse (531006121), we get a palindrome (652606256).

The spelling of 121600135 in words is "one hundred twenty-one million, six hundred thousand, one hundred thirty-five".