72048121 has 8 divisors (see below), whose sum is σ = 75453120. Its totient is φ = 68665872.

The previous prime is 72048113. The next prime is 72048127. The reversal of 72048121 is 12184027.

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 72048121 - 2³ = 72048113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72048127) 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, 975 + ... + 12043.

It is an arithmetic number, because the mean of its divisors is an integer number (9431640).

Almost surely, 2^72048121 is an apocalyptic number.

It is an amenable number.

72048121 is a deficient number, since it is larger than the sum of its proper divisors (3404999).

72048121 is a wasteful number, since it uses less digits than its factorization.

72048121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11375.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 72048121 is about 8488.1164577308. The cubic root of 72048121 is about 416.1094251866.

It can be divided in two parts, 720 and 48121, that added together give a square (48841 = 221²).

The spelling of 72048121 in words is "seventy-two million, forty-eight thousand, one hundred twenty-one".