545074997 has 4 divisors (see below), whose sum is σ = 545145516. Its totient is φ = 545004480.

The previous prime is 545074993. The next prime is 545075053. The reversal of 545074997 is 799470545.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 799470545 = 5 ⋅159894109.

It can be written as a sum of positive squares in 2 ways, for example, as 510488836 + 34586161 = 22594^2 + 5881^2 .

It is a cyclic number.

It is not a de Polignac number, because 545074997 - 2² = 545074993 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545074993) 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, 22004 + ... + 39677.

It is an arithmetic number, because the mean of its divisors is an integer number (136286379).

Almost surely, 2^545074997 is an apocalyptic number.

It is an amenable number.

545074997 is a deficient number, since it is larger than the sum of its proper divisors (70519).

545074997 is an equidigital number, since it uses as much as digits as its factorization.

545074997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70518.

The product of its (nonzero) digits is 1587600, while the sum is 50.

The square root of 545074997 is about 23346.8412638627. The cubic root of 545074997 is about 816.8683831212.

The spelling of 545074997 in words is "five hundred forty-five million, seventy-four thousand, nine hundred ninety-seven".