1051287043 has 4 divisors (see below), whose sum is σ = 1106617960. Its totient is φ = 995956128.

The previous prime is 1051287001. The next prime is 1051287079. The reversal of 1051287043 is 3407821501.

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

It is a cyclic number.

It is not a de Polignac number, because 1051287043 - 2¹⁷ = 1051155971 is a prime.

It is a super-2 number, since 2×1051287043² = 2210408893559367698, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1051286996 and 1051287014.

It is not an unprimeable number, because it can be changed into a prime (1051287143) 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, 27665430 + ... + 27665467.

It is an arithmetic number, because the mean of its divisors is an integer number (276654490).

Almost surely, 2^1051287043 is an apocalyptic number.

1051287043 is a deficient number, since it is larger than the sum of its proper divisors (55330917).

1051287043 is an equidigital number, since it uses as much as digits as its factorization.

1051287043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55330916.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 1051287043 is about 32423.5569146878. The cubic root of 1051287043 is about 1016.8114716374.

The spelling of 1051287043 in words is "one billion, fifty-one million, two hundred eighty-seven thousand, forty-three".