545343393 has 12 divisors (see below), whose sum is σ = 845838960. Its totient is φ = 311624712.

The previous prime is 545343371. The next prime is 545343401. The reversal of 545343393 is 393343545.

It is not a de Polignac number, because 545343393 - 2¹² = 545339297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (545347393) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1854763 + ... + 1855056.

It is an arithmetic number, because the mean of its divisors is an integer number (70486580).

Almost surely, 2^545343393 is an apocalyptic number.

It is an amenable number.

545343393 is a deficient number, since it is larger than the sum of its proper divisors (300495567).

545343393 is a wasteful number, since it uses less digits than its factorization.

545343393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3709836 (or 3709829 counting only the distinct ones).

The product of its digits is 291600, while the sum is 39.

The square root of 545343393 is about 23352.5885717194. The cubic root of 545343393 is about 817.0024369867.

The spelling of 545343393 in words is "five hundred forty-five million, three hundred forty-three thousand, three hundred ninety-three".