3205513042 has 4 divisors (see below), whose sum is σ = 4808269566. Its totient is φ = 1602756520.

The previous prime is 3205513039. The next prime is 3205513079. The reversal of 3205513042 is 2403155023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2403155023 = 23 ⋅104485001.

It can be written as a sum of positive squares in only one way, i.e., 3134768121 + 70744921 = 55989^2 + 8411^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3205512998 and 3205513016.

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 as a sum of consecutive naturals, namely, 801378259 + ... + 801378262.

Almost surely, 2^3205513042 is an apocalyptic number.

3205513042 is a deficient number, since it is larger than the sum of its proper divisors (1602756524).

3205513042 is a wasteful number, since it uses less digits than its factorization.

3205513042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1602756523.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 3205513042 is about 56617.2503924378. The cubic root of 3205513042 is about 1474.4583731177.

Adding to 3205513042 its reverse (2403155023), we get a palindrome (5608668065).

The spelling of 3205513042 in words is "three billion, two hundred five million, five hundred thirteen thousand, forty-two".