1053994 has 4 divisors (see below), whose sum is σ = 1580994. Its totient is φ = 526996.

The previous prime is 1053991. The next prime is 1054003. The reversal of 1053994 is 4993501.

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

It can be written as a sum of positive squares in only one way, i.e., 765625 + 288369 = 875^2 + 537^2 .

It is a super-2 number, since 2×1053994² = 2221806704072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1053991) by changing a digit.

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 as a sum of consecutive naturals, namely, 263497 + ... + 263500.

2^1053994 is an apocalyptic number.

1053994 is a deficient number, since it is larger than the sum of its proper divisors (527000).

1053994 is an equidigital number, since it uses as much as digits as its factorization.

1053994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526999.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 1053994 is about 1026.6420992732. The cubic root of 1053994 is about 101.7683452284.

The spelling of 1053994 in words is "one million, fifty-three thousand, nine hundred ninety-four".