1053985 has 8 divisors (see below), whose sum is σ = 1271016. Its totient is φ = 839040.

The previous prime is 1053971. The next prime is 1053989. The reversal of 1053985 is 5893501.

It can be written as a sum of positive squares in 4 ways, for example, as 51984 + 1002001 = 228^2 + 1001^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1053985 - 2⁵ = 1053953 is a prime.

It is a super-2 number, since 2×1053985² = 2221768760450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1053989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1005 + ... + 1765.

It is an arithmetic number, because the mean of its divisors is an integer number (158877).

2^1053985 is an apocalyptic number.

It is an amenable number.

1053985 is a deficient number, since it is larger than the sum of its proper divisors (217031).

1053985 is an equidigital number, since it uses as much as digits as its factorization.

1053985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 1053985 is about 1026.6377160420. The cubic root of 1053985 is about 101.7680555627.

The spelling of 1053985 in words is "one million, fifty-three thousand, nine hundred eighty-five".