1057945 has 16 divisors (see below), whose sum is σ = 1467648. Its totient is φ = 717120.

The previous prime is 1057919. The next prime is 1057951. The reversal of 1057945 is 5497501.

It is not a de Polignac number, because 1057945 - 2¹¹ = 1055897 is a prime.

It is a super-2 number, since 2×1057945² = 2238495246050, which contains 22 as substring.

1057945 is a lucky number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5755 + ... + 5935.

It is an arithmetic number, because the mean of its divisors is an integer number (91728).

2^1057945 is an apocalyptic number.

It is an amenable number.

1057945 is a deficient number, since it is larger than the sum of its proper divisors (409703).

1057945 is a wasteful number, since it uses less digits than its factorization.

1057945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 1057945 is about 1028.5645337070. The cubic root of 1057945 is about 101.8953495425.

It can be divided in two parts, 1057 and 945, that added together give a palindrome (2002).

The spelling of 1057945 in words is "one million, fifty-seven thousand, nine hundred forty-five".