4097545 has 4 divisors (see below), whose sum is σ = 4917060. Its totient is φ = 3278032.

The previous prime is 4097537. The next prime is 4097551. The reversal of 4097545 is 5457904.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3196944 + 900601 = 1788^2 + 949^2 .

It is a cyclic number.

It is not a de Polignac number, because 4097545 - 2³ = 4097537 is a prime.

4097545 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4097545.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 409750 + ... + 409759.

It is an arithmetic number, because the mean of its divisors is an integer number (1229265).

Almost surely, 2^4097545 is an apocalyptic number.

It is an amenable number.

4097545 is a deficient number, since it is larger than the sum of its proper divisors (819515).

4097545 is an equidigital number, since it uses as much as digits as its factorization.

4097545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819514.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 4097545 is about 2024.2393633165. The cubic root of 4097545 is about 160.0201146586.

The spelling of 4097545 in words is "four million, ninety-seven thousand, five hundred forty-five".