121600136 has 16 divisors (see below), whose sum is σ = 260571840. Its totient is φ = 52114320.

The previous prime is 121600097. The next prime is 121600147. The reversal of 121600136 is 631006121.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1085660 + ... + 1085771.

It is an arithmetic number, because the mean of its divisors is an integer number (16285740).

Almost surely, 2^121600136 is an apocalyptic number.

It is an amenable number.

121600136 is an abundant number, since it is smaller than the sum of its proper divisors (138971704).

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

121600136 is a wasteful number, since it uses less digits than its factorization.

121600136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2171444 (or 2171440 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 121600136 is about 11027.2451682186. The cubic root of 121600136 is about 495.4251165499.

Adding to 121600136 its reverse (631006121), we get a palindrome (752606257).

The spelling of 121600136 in words is "one hundred twenty-one million, six hundred thousand, one hundred thirty-six".