4145056457 has 4 divisors (see below), whose sum is σ = 4145323140. Its totient is φ = 4144789776.

The previous prime is 4145056439. The next prime is 4145056471. The reversal of 4145056457 is 7546505414.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3027090361 + 1117966096 = 55019^2 + 33436^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4145056457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4145056427) 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, 108482 + ... + 141627.

It is an arithmetic number, because the mean of its divisors is an integer number (1036330785).

Almost surely, 2^4145056457 is an apocalyptic number.

It is an amenable number.

4145056457 is a deficient number, since it is larger than the sum of its proper divisors (266683).

4145056457 is a wasteful number, since it uses less digits than its factorization.

4145056457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266682.

The product of its (nonzero) digits is 336000, while the sum is 41.

The square root of 4145056457 is about 64382.1128652982. The cubic root of 4145056457 is about 1606.3622272628.

The spelling of 4145056457 in words is "four billion, one hundred forty-five million, fifty-six thousand, four hundred fifty-seven".