121285567 has 8 divisors (see below), whose sum is σ = 131347440. Its totient is φ = 111328320.

The previous prime is 121285561. The next prime is 121285583. The reversal of 121285567 is 765582121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121285567 - 2³ = 121285559 is a prime.

It is a super-2 number, since 2×121285567² = 29420377525022978, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121285561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23734 + ... + 28387.

It is an arithmetic number, because the mean of its divisors is an integer number (16418430).

Almost surely, 2^121285567 is an apocalyptic number.

121285567 is a deficient number, since it is larger than the sum of its proper divisors (10061873).

121285567 is a wasteful number, since it uses less digits than its factorization.

121285567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52313.

The product of its digits is 33600, while the sum is 37.

The square root of 121285567 is about 11012.9726686304. The cubic root of 121285567 is about 494.9975403748.

The spelling of 121285567 in words is "one hundred twenty-one million, two hundred eighty-five thousand, five hundred sixty-seven".