121266530 has 32 divisors (see below), whose sum is σ = 272142720. Its totient is φ = 37797120.

The previous prime is 121266527. The next prime is 121266539. The reversal of 121266530 is 35662121.

It is a self number, because there is not a number n which added to its sum of digits gives 121266530.

It is not an unprimeable number, because it can be changed into a prime (121266539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77975 + ... + 79514.

It is an arithmetic number, because the mean of its divisors is an integer number (8504460).

Almost surely, 2^121266530 is an apocalyptic number.

121266530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121266530 is an abundant number, since it is smaller than the sum of its proper divisors (150876190).

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

121266530 is a wasteful number, since it uses less digits than its factorization.

121266530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157514.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 121266530 is about 11012.1083358274. The cubic root of 121266530 is about 494.9716407247.

The spelling of 121266530 in words is "one hundred twenty-one million, two hundred sixty-six thousand, five hundred thirty".