121697325 has 18 divisors (see below), whose sum is σ = 217973834. Its totient is φ = 64905120.

The previous prime is 121697309. The next prime is 121697327. The reversal of 121697325 is 523796121.

It can be written as a sum of positive squares in 3 ways, for example, as 741321 + 120956004 = 861^2 + 10998^2 .

It is not a de Polignac number, because 121697325 - 2⁴ = 121697309 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121697325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121697327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 270214 + ... + 270663.

Almost surely, 2^121697325 is an apocalyptic number.

121697325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121697325 is a deficient number, since it is larger than the sum of its proper divisors (96276509).

121697325 is a wasteful number, since it uses less digits than its factorization.

121697325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540893 (or 540885 counting only the distinct ones).

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

The square root of 121697325 is about 11031.6510550325. The cubic root of 121697325 is about 495.5570710334.

The spelling of 121697325 in words is "one hundred twenty-one million, six hundred ninety-seven thousand, three hundred twenty-five".