545397373 has 4 divisors (see below), whose sum is σ = 545663808. Its totient is φ = 545130940.

The previous prime is 545397331. The next prime is 545397397. The reversal of 545397373 is 373793545.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 373793545 = 5 ⋅74758709.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545397373 is a prime.

It is a super-2 number, since 2×545397373² = 594916588950602258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545391373) 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, 130123 + ... + 134248.

It is an arithmetic number, because the mean of its divisors is an integer number (136415952).

Almost surely, 2^545397373 is an apocalyptic number.

It is an amenable number.

545397373 is a deficient number, since it is larger than the sum of its proper divisors (266435).

545397373 is a wasteful number, since it uses less digits than its factorization.

545397373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266434.

The product of its digits is 1190700, while the sum is 46.

The square root of 545397373 is about 23353.7443036443. The cubic root of 545397373 is about 817.0293926854.

The spelling of 545397373 in words is "five hundred forty-five million, three hundred ninety-seven thousand, three hundred seventy-three".