3185143146 has 12 divisors (see below), whose sum is σ = 6901143522. Its totient is φ = 1061714376.

The previous prime is 3185143133. The next prime is 3185143153. The reversal of 3185143146 is 6413415813.

3185143146 is a `hidden beast` number, since 3 + 185 + 1 + 431 + 46 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2069249121 + 1115894025 = 45489^2 + 33405^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3185143146.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 88476181 + ... + 88476216.

Almost surely, 2^3185143146 is an apocalyptic number.

3185143146 is an abundant number, since it is smaller than the sum of its proper divisors (3716000376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3185143146 is a wasteful number, since it uses less digits than its factorization.

3185143146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176952405 (or 176952402 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 3185143146 is about 56437.0724435632. The cubic root of 3185143146 is about 1471.3285143881.

Adding to 3185143146 its reverse (6413415813), we get a palindrome (9598558959).

The spelling of 3185143146 in words is "three billion, one hundred eighty-five million, one hundred forty-three thousand, one hundred forty-six".