1682699545 has 4 divisors (see below), whose sum is σ = 2019239460. Its totient is φ = 1346159632.

The previous prime is 1682699539. The next prime is 1682699563. The reversal of 1682699545 is 5459962861.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 206295769 + 1476403776 = 14363^2 + 38424^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1682699545 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168269950 + ... + 168269959.

It is an arithmetic number, because the mean of its divisors is an integer number (504809865).

Almost surely, 2^1682699545 is an apocalyptic number.

It is an amenable number.

1682699545 is a deficient number, since it is larger than the sum of its proper divisors (336539915).

1682699545 is an equidigital number, since it uses as much as digits as its factorization.

1682699545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336539914.

The product of its digits is 4665600, while the sum is 55.

The square root of 1682699545 is about 41020.7209224801. The cubic root of 1682699545 is about 1189.4207912626.

The spelling of 1682699545 in words is "one billion, six hundred eighty-two million, six hundred ninety-nine thousand, five hundred forty-five".