3129200413 has 4 divisors (see below), whose sum is σ = 3137245020. Its totient is φ = 3121155808.

The previous prime is 3129200411. The next prime is 3129200443. The reversal of 3129200413 is 3140029213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3140029213 = 11971 ⋅262303.

It can be written as a sum of positive squares in 2 ways, for example, as 931653529 + 2197546884 = 30523^2 + 46878^2 .

It is a cyclic number.

It is not a de Polignac number, because 3129200413 - 2¹ = 3129200411 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3129200411) 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, 4021720 + ... + 4022497.

It is an arithmetic number, because the mean of its divisors is an integer number (784311255).

Almost surely, 2^3129200413 is an apocalyptic number.

It is an amenable number.

3129200413 is a deficient number, since it is larger than the sum of its proper divisors (8044607).

3129200413 is an equidigital number, since it uses as much as digits as its factorization.

3129200413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8044606.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 3129200413 is about 55939.2564573395. The cubic root of 3129200413 is about 1462.6636202164.

Adding to 3129200413 its reverse (3140029213), we get a palindrome (6269229626).

The spelling of 3129200413 in words is "three billion, one hundred twenty-nine million, two hundred thousand, four hundred thirteen".