1051243 has 4 divisors (see below), whose sum is σ = 1053360. Its totient is φ = 1049128.

The previous prime is 1051181. The next prime is 1051247. The reversal of 1051243 is 3421501.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1051243 is a prime.

It is a super-2 number, since 2×1051243² = 2210223690098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1051247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138 + ... + 1456.

It is an arithmetic number, because the mean of its divisors is an integer number (263340).

2^1051243 is an apocalyptic number.

1051243 is a deficient number, since it is larger than the sum of its proper divisors (2117).

1051243 is an equidigital number, since it uses as much as digits as its factorization.

1051243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2116.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1051243 is about 1025.3014190959. The cubic root of 1051243 is about 101.6797271883.

Adding to 1051243 its reverse (3421501), we get a palindrome (4472744).

The spelling of 1051243 in words is "one million, fifty-one thousand, two hundred forty-three".