1057953445 has 4 divisors (see below), whose sum is σ = 1269544140. Its totient is φ = 846362752.

The previous prime is 1057953431. The next prime is 1057953499. The reversal of 1057953445 is 5443597501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5443597501 = 107 ⋅50874743.

It can be written as a sum of positive squares in 2 ways, for example, as 384395236 + 673558209 = 19606^2 + 25953^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1057953445 is a prime.

It is a super-2 number, since 2×1057953445² = 2238530983574736050, 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, 105795340 + ... + 105795349.

It is an arithmetic number, because the mean of its divisors is an integer number (317386035).

Almost surely, 2^1057953445 is an apocalyptic number.

It is an amenable number.

1057953445 is a deficient number, since it is larger than the sum of its proper divisors (211590695).

1057953445 is an equidigital number, since it uses as much as digits as its factorization.

1057953445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211590694.

The product of its (nonzero) digits is 378000, while the sum is 43.

The square root of 1057953445 is about 32526.1962885303. The cubic root of 1057953445 is about 1018.9562066684.

The spelling of 1057953445 in words is "one billion, fifty-seven million, nine hundred fifty-three thousand, four hundred forty-five".