7145497 has 4 divisors (see below), whose sum is σ = 7168356. Its totient is φ = 7122640.

The previous prime is 7145473. The next prime is 7145503. The reversal of 7145497 is 7945417.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7945417 = 37 ⋅214741.

It can be written as a sum of positive squares in 2 ways, for example, as 2752281 + 4393216 = 1659^2 + 2096^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7145497 is a prime.

It is a Duffinian number.

7145497 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7145417) 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, 10954 + ... + 11587.

It is an arithmetic number, because the mean of its divisors is an integer number (1792089).

Almost surely, 2^7145497 is an apocalyptic number.

It is an amenable number.

7145497 is a deficient number, since it is larger than the sum of its proper divisors (22859).

7145497 is a wasteful number, since it uses less digits than its factorization.

7145497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22858.

The product of its digits is 35280, while the sum is 37.

The square root of 7145497 is about 2673.1062455503. The cubic root of 7145497 is about 192.6094009049.

The spelling of 7145497 in words is "seven million, one hundred forty-five thousand, four hundred ninety-seven".