1051246729 has 8 divisors (see below), whose sum is σ = 1144833480. Its totient is φ = 959477376.

The previous prime is 1051246711. The next prime is 1051246739. The reversal of 1051246729 is 9276421501.

It can be written as a sum of positive squares in 4 ways, for example, as 50979600 + 1000267129 = 7140^2 + 31627^2 .

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

It is not a de Polignac number, because 1051246729 - 2¹⁷ = 1051115657 is a prime.

It is a super-2 number, since 2×1051246729² = 2210239370466398882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1051246739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 453142 + ... + 455455.

It is an arithmetic number, because the mean of its divisors is an integer number (143104185).

Almost surely, 2^1051246729 is an apocalyptic number.

It is an amenable number.

1051246729 is a deficient number, since it is larger than the sum of its proper divisors (93586751).

1051246729 is an equidigital number, since it uses as much as digits as its factorization.

1051246729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908699.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 1051246729 is about 32422.9352310984. The cubic root of 1051246729 is about 1016.7984741528.

It can be divided in two parts, 1051246 and 729, that added together give a triangular number (1051975 = T₁₄₅₀).

The spelling of 1051246729 in words is "one billion, fifty-one million, two hundred forty-six thousand, seven hundred twenty-nine".