7145273 has 6 divisors (see below), whose sum is σ = 7541514. Its totient is φ = 6768864.

The previous prime is 7145251. The next prime is 7145291. The reversal of 7145273 is 3725417.

It can be written as a sum of positive squares in only one way, i.e., 6775609 + 369664 = 2603^2 + 608^2 .

It is not a de Polignac number, because 7145273 - 2⁶ = 7145209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7145233) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9536 + ... + 10257.

It is an arithmetic number, because the mean of its divisors is an integer number (1256919).

Almost surely, 2^7145273 is an apocalyptic number.

It is an amenable number.

7145273 is a deficient number, since it is larger than the sum of its proper divisors (396241).

7145273 is a wasteful number, since it uses less digits than its factorization.

7145273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19831 (or 19812 counting only the distinct ones).

The product of its digits is 5880, while the sum is 29.

The square root of 7145273 is about 2673.0643464010. The cubic root of 7145273 is about 192.6073882175.

The spelling of 7145273 in words is "seven million, one hundred forty-five thousand, two hundred seventy-three".