3129890245 has 8 divisors (see below), whose sum is σ = 3764349216. Its totient is φ = 2498258256.

The previous prime is 3129890227. The next prime is 3129890251. The reversal of 3129890245 is 5420989213.

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

It is a cyclic number.

It is not a de Polignac number, because 3129890245 - 2¹⁹ = 3129365957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 704307 + ... + 708736.

It is an arithmetic number, because the mean of its divisors is an integer number (470543652).

Almost surely, 2^3129890245 is an apocalyptic number.

It is an amenable number.

3129890245 is a deficient number, since it is larger than the sum of its proper divisors (634458971).

3129890245 is a wasteful number, since it uses less digits than its factorization.

3129890245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1413491.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 3129890245 is about 55945.4220200366. The cubic root of 3129890245 is about 1462.7710936816.

The spelling of 3129890245 in words is "three billion, one hundred twenty-nine million, eight hundred ninety thousand, two hundred forty-five".