3245520239 has 16 divisors (see below), whose sum is σ = 3629253600. Its totient is φ = 2881716096.

The previous prime is 3245520233. The next prime is 3245520259. The reversal of 3245520239 is 9320255423.

It is a cyclic number.

It is not a de Polignac number, because 3245520239 - 2¹⁶ = 3245454703 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3245520199 and 3245520208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3245520233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85412 + ... + 117414.

It is an arithmetic number, because the mean of its divisors is an integer number (226828350).

Almost surely, 2^3245520239 is an apocalyptic number.

3245520239 is a deficient number, since it is larger than the sum of its proper divisors (383733361).

3245520239 is a wasteful number, since it uses less digits than its factorization.

3245520239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32314.

The product of its (nonzero) digits is 64800, while the sum is 35.

The square root of 3245520239 is about 56969.4676032697. The cubic root of 3245520239 is about 1480.5671430920.

The spelling of 3245520239 in words is "three billion, two hundred forty-five million, five hundred twenty thousand, two hundred thirty-nine".