1045686729 has 8 divisors (see below), whose sum is σ = 1395886912. Its totient is φ = 696305520.

The previous prime is 1045686667. The next prime is 1045686737. The reversal of 1045686729 is 9276865401.

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

It is not a de Polignac number, because 1045686729 - 2¹⁹ = 1045162441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1045686799) 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, 201757 + ... + 206874.

It is an arithmetic number, because the mean of its divisors is an integer number (174485864).

Almost surely, 2^1045686729 is an apocalyptic number.

It is an amenable number.

1045686729 is a deficient number, since it is larger than the sum of its proper divisors (350200183).

1045686729 is an equidigital number, since it uses as much as digits as its factorization.

1045686729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409487.

The product of its (nonzero) digits is 725760, while the sum is 48.

The square root of 1045686729 is about 32337.0797846683. The cubic root of 1045686729 is about 1015.0027029622.

The spelling of 1045686729 in words is "one billion, forty-five million, six hundred eighty-six thousand, seven hundred twenty-nine".