121093566 has 16 divisors (see below), whose sum is σ = 264204288. Its totient is φ = 36695000.

The previous prime is 121093561. The next prime is 121093613. The reversal of 121093566 is 665390121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121093561) 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, 917310 + ... + 917441.

It is an arithmetic number, because the mean of its divisors is an integer number (16512768).

Almost surely, 2^121093566 is an apocalyptic number.

121093566 is an abundant number, since it is smaller than the sum of its proper divisors (143110722).

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

121093566 is a wasteful number, since it uses less digits than its factorization.

121093566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1834767.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 121093566 is about 11004.2521781355. The cubic root of 121093566 is about 494.7362006286.

The spelling of 121093566 in words is "one hundred twenty-one million, ninety-three thousand, five hundred sixty-six".