121798269 has 16 divisors (see below), whose sum is σ = 180855040. Its totient is φ = 81012960.

The previous prime is 121798253. The next prime is 121798279. The reversal of 121798269 is 962897121.

It is not a de Polignac number, because 121798269 - 2⁴ = 121798253 is a prime.

It is a super-2 number, since 2×121798269² = 29669636662792722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121798219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7404 + ... + 17274.

It is an arithmetic number, because the mean of its divisors is an integer number (11303440).

Almost surely, 2^121798269 is an apocalyptic number.

It is an amenable number.

121798269 is a deficient number, since it is larger than the sum of its proper divisors (59056771).

121798269 is an equidigital number, since it uses as much as digits as its factorization.

121798269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10337 (or 10331 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 121798269 is about 11036.2253057828. The cubic root of 121798269 is about 495.6940493616.

It can be divided in two parts, 12 and 1798269, that added together give a square (1798281 = 1341²).

The spelling of 121798269 in words is "one hundred twenty-one million, seven hundred ninety-eight thousand, two hundred sixty-nine".