7272451 has 4 divisors (see below), whose sum is σ = 7427232. Its totient is φ = 7117672.

The previous prime is 7272449. The next prime is 7272491. The reversal of 7272451 is 1542727.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7272451 - 2¹ = 7272449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7272431) 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, 77320 + ... + 77413.

It is an arithmetic number, because the mean of its divisors is an integer number (1856808).

Almost surely, 2^7272451 is an apocalyptic number.

7272451 is a deficient number, since it is larger than the sum of its proper divisors (154781).

7272451 is a wasteful number, since it uses less digits than its factorization.

7272451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154780.

The product of its digits is 3920, while the sum is 28.

The square root of 7272451 is about 2696.7482270320. The cubic root of 7272451 is about 193.7434078923.

The spelling of 7272451 in words is "seven million, two hundred seventy-two thousand, four hundred fifty-one".