121339375 has 30 divisors (see below), whose sum is σ = 158936624. Its totient is φ = 92598000.

The previous prime is 121339373. The next prime is 121339397. The reversal of 121339375 is 573933121.

It is a happy number.

It is not a de Polignac number, because 121339375 - 2¹ = 121339373 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121339375.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121339373) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 330442 + ... + 330808.

Almost surely, 2^121339375 is an apocalyptic number.

121339375 is a deficient number, since it is larger than the sum of its proper divisors (37597249).

121339375 is an frugal number, since it uses more digits than its factorization.

121339375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433 (or 395 counting only the distinct ones).

The product of its digits is 17010, while the sum is 34.

The square root of 121339375 is about 11015.4153348841. The cubic root of 121339375 is about 495.0707309736.

The spelling of 121339375 in words is "one hundred twenty-one million, three hundred thirty-nine thousand, three hundred seventy-five".