121375692 has 96 divisors (see below), whose sum is σ = 331752960. Its totient is φ = 38301120.

The previous prime is 121375603. The next prime is 121375697. The reversal of 121375692 is 296573121.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

Its product of digits (22680) is a multiple of the sum of its prime factors (540).

It is not an unprimeable number, because it can be changed into a prime (121375697) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 325218 + ... + 325590.

It is an arithmetic number, because the mean of its divisors is an integer number (3455760).

Almost surely, 2^121375692 is an apocalyptic number.

121375692 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121375692, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165876480).

121375692 is an abundant number, since it is smaller than the sum of its proper divisors (210377268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121375692 is a wasteful number, since it uses less digits than its factorization.

121375692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540 (or 532 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 121375692 is about 11017.0636741375. The cubic root of 121375692 is about 495.1201177734.

The spelling of 121375692 in words is "one hundred twenty-one million, three hundred seventy-five thousand, six hundred ninety-two".