121690848 has 24 divisors (see below), whose sum is σ = 319438728. Its totient is φ = 40563584.

The previous prime is 121690843. The next prime is 121690853. The reversal of 121690848 is 848096121.

It is an interprime number because it is at equal distance from previous prime (121690843) and next prime (121690853).

It is a tau number, because it is divible by the number of its divisors (24).

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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (121690843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 633711 + ... + 633902.

It is an arithmetic number, because the mean of its divisors is an integer number (13309947).

Almost surely, 2^121690848 is an apocalyptic number.

It is an amenable number.

121690848 is an abundant number, since it is smaller than the sum of its proper divisors (197747880).

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

121690848 is a wasteful number, since it uses less digits than its factorization.

121690848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267626 (or 1267618 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 121690848 is about 11031.3574867285. The cubic root of 121690848 is about 495.5482793307.

The spelling of 121690848 in words is "one hundred twenty-one million, six hundred ninety thousand, eight hundred forty-eight".