121501273 has 8 divisors (see below), whose sum is σ = 126033248. Its totient is φ = 117046944.

The previous prime is 121501267. The next prime is 121501297. The reversal of 121501273 is 372105121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121501273 - 2⁹ = 121500761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121501073) 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, 16215 + ... + 22492.

It is an arithmetic number, because the mean of its divisors is an integer number (15754156).

Almost surely, 2^121501273 is an apocalyptic number.

It is an amenable number.

121501273 is a deficient number, since it is larger than the sum of its proper divisors (4531975).

121501273 is an equidigital number, since it uses as much as digits as its factorization.

121501273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38823.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 121501273 is about 11022.7615868257. The cubic root of 121501273 is about 495.2908171032.

Adding to 121501273 its reverse (372105121), we get a palindrome (493606394).

The spelling of 121501273 in words is "one hundred twenty-one million, five hundred one thousand, two hundred seventy-three".