121655344 has 10 divisors (see below), whose sum is σ = 235707260. Its totient is φ = 60827664.

The previous prime is 121655333. The next prime is 121655357. The reversal of 121655344 is 443556121.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3801714 + ... + 3801745.

It is an arithmetic number, because the mean of its divisors is an integer number (23570726).

Almost surely, 2^121655344 is an apocalyptic number.

It is an amenable number.

121655344 is a deficient number, since it is larger than the sum of its proper divisors (114051916).

121655344 is an equidigital number, since it uses as much as digits as its factorization.

121655344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7603467 (or 7603461 counting only the distinct ones).

The product of its digits is 14400, while the sum is 31.

The square root of 121655344 is about 11029.7481385569. The cubic root of 121655344 is about 495.5000816294.

The spelling of 121655344 in words is "one hundred twenty-one million, six hundred fifty-five thousand, three hundred forty-four".