3199729045 has 4 divisors (see below), whose sum is σ = 3839674860. Its totient is φ = 2559783232.

The previous prime is 3199729037. The next prime is 3199729073. The reversal of 3199729045 is 5409279913.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1740641841 + 1459087204 = 41721^2 + 38198^2 .

It is a cyclic number.

It is not a de Polignac number, because 3199729045 - 2³ = 3199729037 is a prime.

It is a super-2 number, since 2×3199729045² = 20476531922833224050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3199729045.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319972900 + ... + 319972909.

It is an arithmetic number, because the mean of its divisors is an integer number (959918715).

Almost surely, 2^3199729045 is an apocalyptic number.

It is an amenable number.

3199729045 is a deficient number, since it is larger than the sum of its proper divisors (639945815).

3199729045 is an equidigital number, since it uses as much as digits as its factorization.

3199729045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639945814.

The product of its (nonzero) digits is 612360, while the sum is 49.

The square root of 3199729045 is about 56566.1475177513. The cubic root of 3199729045 is about 1473.5710063341.

The spelling of 3199729045 in words is "three billion, one hundred ninety-nine million, seven hundred twenty-nine thousand, forty-five".