3205144085 has 64 divisors (see below), whose sum is σ = 4657250304. Its totient is φ = 2086560000.

The previous prime is 3205144081. The next prime is 3205144087. The reversal of 3205144085 is 5804415023.

It is not a de Polignac number, because 3205144085 - 2² = 3205144081 is a prime.

It is a super-2 number, since 2×3205144085² = 20545897211220974450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3205144081) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 4267460 + ... + 4268210.

It is an arithmetic number, because the mean of its divisors is an integer number (72769536).

Almost surely, 2^3205144085 is an apocalyptic number.

It is an amenable number.

3205144085 is a deficient number, since it is larger than the sum of its proper divisors (1452106219).

3205144085 is a wasteful number, since it uses less digits than its factorization.

3205144085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954.

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 3205144085 is about 56613.9919542864. The cubic root of 3205144085 is about 1474.4018005187.

The spelling of 3205144085 in words is "three billion, two hundred five million, one hundred forty-four thousand, eighty-five".