121585375 has 8 divisors (see below), whose sum is σ = 151738704. Its totient is φ = 97268200.

The previous prime is 121585357. The next prime is 121585393. The reversal of 121585375 is 573585121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (121585357) and next prime (121585393).

It is a de Polignac number, because none of the positive numbers 2^k-121585375 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, 486217 + ... + 486466.

It is an arithmetic number, because the mean of its divisors is an integer number (18967338).

Almost surely, 2^121585375 is an apocalyptic number.

121585375 is a deficient number, since it is larger than the sum of its proper divisors (30153329).

121585375 is an frugal number, since it uses more digits than its factorization.

121585375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972698 (or 972688 counting only the distinct ones).

The product of its digits is 42000, while the sum is 37.

The square root of 121585375 is about 11026.5758510972. The cubic root of 121585375 is about 495.4050692421.

The spelling of 121585375 in words is "one hundred twenty-one million, five hundred eighty-five thousand, three hundred seventy-five".