457775145 has 40 divisors (see below), whose sum is σ = 822343104. Its totient is φ = 243629856.

The previous prime is 457775117. The next prime is 457775147. The reversal of 457775145 is 541577754.

457775145 is a `hidden beast` number, since 4 + 577 + 75 + 1 + 4 + 5 = 666.

It is not a de Polignac number, because 457775145 - 2⁶ = 457775081 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 457775145.

It is not an unprimeable number, because it can be changed into a prime (457775147) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 261162 + ... + 262908.

Almost surely, 2^457775145 is an apocalyptic number.

457775145 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

457775145 is a deficient number, since it is larger than the sum of its proper divisors (364567959).

457775145 is a wasteful number, since it uses less digits than its factorization.

457775145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2411 (or 2402 counting only the distinct ones).

The product of its digits is 686000, while the sum is 45.

The square root of 457775145 is about 21395.6805220119. The cubic root of 457775145 is about 770.6977118952.

The spelling of 457775145 in words is "four hundred fifty-seven million, seven hundred seventy-five thousand, one hundred forty-five".