121797148 has 24 divisors (see below), whose sum is σ = 234453744. Its totient is φ = 55359920.

The previous prime is 121797107. The next prime is 121797157. The reversal of 121797148 is 841797121.

It is a self number, because there is not a number n which added to its sum of digits gives 121797148.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6115 + ... + 16762.

It is an arithmetic number, because the mean of its divisors is an integer number (9768906).

Almost surely, 2^121797148 is an apocalyptic number.

It is an amenable number.

121797148 is a deficient number, since it is larger than the sum of its proper divisors (112656596).

121797148 is a wasteful number, since it uses less digits than its factorization.

121797148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22914 (or 22890 counting only the distinct ones).

The product of its digits is 28224, while the sum is 40.

The square root of 121797148 is about 11036.1745183737. The cubic root of 121797148 is about 495.6925286100.

The spelling of 121797148 in words is "one hundred twenty-one million, seven hundred ninety-seven thousand, one hundred forty-eight".