121695488 has 36 divisors (see below), whose sum is σ = 246929508. Its totient is φ = 59842560.

The previous prime is 121695467. The next prime is 121695527. The reversal of 121695488 is 884596121.

It can be written as a sum of positive squares in 2 ways, for example, as 62220544 + 59474944 = 7888^2 + 7712^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11720 + ... + 19512.

It is an arithmetic number, because the mean of its divisors is an integer number (6859153).

Almost surely, 2^121695488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121695488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123464754).

121695488 is an abundant number, since it is smaller than the sum of its proper divisors (125234020).

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

121695488 is an frugal number, since it uses more digits than its factorization.

121695488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7870 (or 7856 counting only the distinct ones).

The product of its digits is 138240, while the sum is 44.

The square root of 121695488 is about 11031.5677942893. The cubic root of 121695488 is about 495.5545775715.

The spelling of 121695488 in words is "one hundred twenty-one million, six hundred ninety-five thousand, four hundred eighty-eight".