121026136 has 96 divisors (see below), whose sum is σ = 291301920. Its totient is φ = 46126080.

The previous prime is 121026131. The next prime is 121026163. The reversal of 121026136 is 631620121.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121026131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 358960 + ... + 359296.

It is an arithmetic number, because the mean of its divisors is an integer number (3034395).

Almost surely, 2^121026136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121026136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145650960).

121026136 is an abundant number, since it is smaller than the sum of its proper divisors (170275784).

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

121026136 is a wasteful number, since it uses less digits than its factorization.

121026136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425 (or 410 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 121026136 is about 11001.1879358549. The cubic root of 121026136 is about 494.6443535907.

Adding to 121026136 its reverse (631620121), we get a palindrome (752646257).

The spelling of 121026136 in words is "one hundred twenty-one million, twenty-six thousand, one hundred thirty-six".