7272105 has 16 divisors (see below), whose sum is σ = 11675904. Its totient is φ = 3864960.

The previous prime is 7272061. The next prime is 7272119. The reversal of 7272105 is 5012727.

It is not a de Polignac number, because 7272105 - 2⁷ = 7271977 is a prime.

It is a super-3 number, since 3×7272105³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an alternating number because its digits alternate between odd and even.

7272105 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4845 + ... + 6165.

It is an arithmetic number, because the mean of its divisors is an integer number (729744).

Almost surely, 2^7272105 is an apocalyptic number.

7272105 is the 2202-nd pentagonal number.

It is an amenable number.

7272105 is a deficient number, since it is larger than the sum of its proper divisors (4403799).

7272105 is a wasteful number, since it uses less digits than its factorization.

7272105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1696.

The product of its (nonzero) digits is 980, while the sum is 24.

The square root of 7272105 is about 2696.6840749335. The cubic root of 7272105 is about 193.7403352793.

The spelling of 7272105 in words is "seven million, two hundred seventy-two thousand, one hundred five".