121884565 has 8 divisors (see below), whose sum is σ = 159558048. Its totient is φ = 88643280.

The previous prime is 121884559. The next prime is 121884571. The reversal of 121884565 is 565488121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (121884559) and next prime (121884571).

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

It is not a de Polignac number, because 121884565 - 2⁷ = 121884437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1107987 + ... + 1108096.

It is an arithmetic number, because the mean of its divisors is an integer number (19944756).

Almost surely, 2^121884565 is an apocalyptic number.

It is an amenable number.

121884565 is a deficient number, since it is larger than the sum of its proper divisors (37673483).

121884565 is a wasteful number, since it uses less digits than its factorization.

121884565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2216099.

The product of its digits is 76800, while the sum is 40.

The square root of 121884565 is about 11040.1342836036. The cubic root of 121884565 is about 495.8110907487.

The spelling of 121884565 in words is "one hundred twenty-one million, eight hundred eighty-four thousand, five hundred sixty-five".