3251485309 has 4 divisors (see below), whose sum is σ = 3253517820. Its totient is φ = 3249452800.

The previous prime is 3251485283. The next prime is 3251485337. The reversal of 3251485309 is 9035841523.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9035841523 = 73 ⋅123778651.

It can be written as a sum of positive squares in 2 ways, for example, as 3121456900 + 130028409 = 55870^2 + 11403^2 .

It is a cyclic number.

It is not a de Polignac number, because 3251485309 - 2¹⁷ = 3251354237 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 (3251485109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1013854 + ... + 1017055.

It is an arithmetic number, because the mean of its divisors is an integer number (813379455).

Almost surely, 2^3251485309 is an apocalyptic number.

It is an amenable number.

3251485309 is a deficient number, since it is larger than the sum of its proper divisors (2032511).

3251485309 is a wasteful number, since it uses less digits than its factorization.

3251485309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2032510.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 3251485309 is about 57021.7967885966. The cubic root of 3251485309 is about 1481.4736522507.

The spelling of 3251485309 in words is "three billion, two hundred fifty-one million, four hundred eighty-five thousand, three hundred nine".