3129385801 has 4 divisors (see below), whose sum is σ = 3130411204. Its totient is φ = 3128360400.

The previous prime is 3129385793. The next prime is 3129385811. The reversal of 3129385801 is 1085839213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1085839213 = 269 ⋅4036577.

It can be written as a sum of positive squares in 2 ways, for example, as 2546211600 + 583174201 = 50460^2 + 24149^2 .

It is a cyclic number.

It is not a de Polignac number, because 3129385801 - 2³ = 3129385793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3129385811) 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, 508110 + ... + 514231.

It is an arithmetic number, because the mean of its divisors is an integer number (782602801).

Almost surely, 2^3129385801 is an apocalyptic number.

It is an amenable number.

3129385801 is a deficient number, since it is larger than the sum of its proper divisors (1025403).

3129385801 is a wasteful number, since it uses less digits than its factorization.

3129385801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025402.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 3129385801 is about 55940.9134802070. The cubic root of 3129385801 is about 1462.6925045843.

The spelling of 3129385801 in words is "three billion, one hundred twenty-nine million, three hundred eighty-five thousand, eight hundred one".