121368648 has 32 divisors (see below), whose sum is σ = 307267200. Its totient is φ = 39943488.

The previous prime is 121368647. The next prime is 121368649. The reversal of 121368648 is 846863121.

It is an interprime number because it is at equal distance from previous prime (121368647) and next prime (121368649).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (121368647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30111 + ... + 33902.

It is an arithmetic number, because the mean of its divisors is an integer number (9602100).

Almost surely, 2^121368648 is an apocalyptic number.

It is an amenable number.

121368648 is an abundant number, since it is smaller than the sum of its proper divisors (185898552).

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

121368648 is a wasteful number, since it uses less digits than its factorization.

121368648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64101 (or 64097 counting only the distinct ones).

The product of its digits is 55296, while the sum is 39.

The square root of 121368648 is about 11016.7439835915. The cubic root of 121368648 is about 495.1105395415.

The spelling of 121368648 in words is "one hundred twenty-one million, three hundred sixty-eight thousand, six hundred forty-eight".