545168457 has 6 divisors (see below), whose sum is σ = 787465562. Its totient is φ = 363445632.

The previous prime is 545168443. The next prime is 545168479. The reversal of 545168457 is 754861545.

545168457 is a `hidden beast` number, since 5 + 4 + 516 + 84 + 57 = 666.

It can be written as a sum of positive squares in only one way, i.e., 338412816 + 206755641 = 18396^2 + 14379^2 .

It is not a de Polignac number, because 545168457 - 2¹⁹ = 544644169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545168417) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30287128 + ... + 30287145.

Almost surely, 2^545168457 is an apocalyptic number.

It is an amenable number.

545168457 is a deficient number, since it is larger than the sum of its proper divisors (242297105).

545168457 is a wasteful number, since it uses less digits than its factorization.

545168457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60574279 (or 60574276 counting only the distinct ones).

The product of its digits is 672000, while the sum is 45.

The square root of 545168457 is about 23348.8427336346. The cubic root of 545168457 is about 816.9150679239.

The spelling of 545168457 in words is "five hundred forty-five million, one hundred sixty-eight thousand, four hundred fifty-seven".