3205125634 has 16 divisors (see below), whose sum is σ = 5106774168. Its totient is φ = 1503470592.

The previous prime is 3205125611. The next prime is 3205125643. The reversal of 3205125634 is 4365215023.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2106534609 + 1098591025 = 45897^2 + 33145^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3205125596 and 3205125605.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139947 + ... + 161230.

Almost surely, 2^3205125634 is an apocalyptic number.

3205125634 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

3205125634 is a deficient number, since it is larger than the sum of its proper divisors (1901648534).

3205125634 is a wasteful number, since it uses less digits than its factorization.

3205125634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301509.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 3205125634 is about 56613.8289996358. The cubic root of 3205125634 is about 1474.3989712918.

The spelling of 3205125634 in words is "three billion, two hundred five million, one hundred twenty-five thousand, six hundred thirty-four".