121366607 has 4 divisors (see below), whose sum is σ = 126643440. Its totient is φ = 116089776.

The previous prime is 121366603. The next prime is 121366627. The reversal of 121366607 is 706663121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 706663121 = 103 ⋅6860807.

It is a cyclic number.

It is not a de Polignac number, because 121366607 - 2² = 121366603 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121366603) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2638382 + ... + 2638427.

It is an arithmetic number, because the mean of its divisors is an integer number (31660860).

Almost surely, 2^121366607 is an apocalyptic number.

121366607 is a deficient number, since it is larger than the sum of its proper divisors (5276833).

121366607 is an equidigital number, since it uses as much as digits as its factorization.

121366607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5276832.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 121366607 is about 11016.6513514770. The cubic root of 121366607 is about 495.1077641782.

The spelling of 121366607 in words is "one hundred twenty-one million, three hundred sixty-six thousand, six hundred seven".