457661045 has 4 divisors (see below), whose sum is σ = 549193260. Its totient is φ = 366128832.

The previous prime is 457661027. The next prime is 457661059. The reversal of 457661045 is 540166754.

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 129254161 + 328406884 = 11369^2 + 18122^2 .

It is a cyclic number.

It is not a de Polignac number, because 457661045 - 2⁶ = 457660981 is a prime.

It is a super-2 number, since 2×457661045² = 418907264220984050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45766100 + ... + 45766109.

It is an arithmetic number, because the mean of its divisors is an integer number (137298315).

Almost surely, 2^457661045 is an apocalyptic number.

It is an amenable number.

457661045 is a deficient number, since it is larger than the sum of its proper divisors (91532215).

457661045 is an equidigital number, since it uses as much as digits as its factorization.

457661045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91532214.

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 457661045 is about 21393.0139297856. The cubic root of 457661045 is about 770.6336746949.

The spelling of 457661045 in words is "four hundred fifty-seven million, six hundred sixty-one thousand, forty-five".