1683312145 has 8 divisors (see below), whose sum is σ = 2030126400. Its totient is φ = 1339881840.

The previous prime is 1683312143. The next prime is 1683312167. The reversal of 1683312145 is 5412133861.

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

It is not a de Polignac number, because 1683312145 - 2¹ = 1683312143 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1683312145.

It is not an unprimeable number, because it can be changed into a prime (1683312143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 844891 + ... + 846880.

It is an arithmetic number, because the mean of its divisors is an integer number (253765800).

Almost surely, 2^1683312145 is an apocalyptic number.

It is an amenable number.

1683312145 is a deficient number, since it is larger than the sum of its proper divisors (346814255).

1683312145 is a wasteful number, since it uses less digits than its factorization.

1683312145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1691975.

The product of its digits is 17280, while the sum is 34.

The square root of 1683312145 is about 41028.1872009963. The cubic root of 1683312145 is about 1189.5651130806.

The spelling of 1683312145 in words is "one billion, six hundred eighty-three million, three hundred twelve thousand, one hundred forty-five".