1641935146 has 8 divisors (see below), whose sum is σ = 2463354180. Its totient is φ = 820817088.

The previous prime is 1641935143. The next prime is 1641935167. The reversal of 1641935146 is 6415391461.

It can be written as a sum of positive squares in 2 ways, for example, as 1639359121 + 2576025 = 40489^2 + 1605^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1641935099 and 1641935108.

It is not an unprimeable number, because it can be changed into a prime (1641935143) 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 3 ways as a sum of consecutive naturals, for example, 61071 + ... + 83746.

Almost surely, 2^1641935146 is an apocalyptic number.

1641935146 is a deficient number, since it is larger than the sum of its proper divisors (821419034).

1641935146 is a wasteful number, since it uses less digits than its factorization.

1641935146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150488.

The product of its digits is 77760, while the sum is 40.

The square root of 1641935146 is about 40520.7989309194. The cubic root of 1641935146 is about 1179.7373603922.

The spelling of 1641935146 in words is "one billion, six hundred forty-one million, nine hundred thirty-five thousand, one hundred forty-six".