1683442523 has 4 divisors (see below), whose sum is σ = 1923934320. Its totient is φ = 1442950728.

The previous prime is 1683442517. The next prime is 1683442529. The reversal of 1683442523 is 3252443861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3252443861 = 199 ⋅16343939.

It is an interprime number because it is at equal distance from previous prime (1683442517) and next prime (1683442529).

It is a cyclic number.

It is not a de Polignac number, because 1683442523 - 2¹⁶ = 1683376987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1683442529) 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, 120245888 + ... + 120245901.

It is an arithmetic number, because the mean of its divisors is an integer number (480983580).

Almost surely, 2^1683442523 is an apocalyptic number.

1683442523 is a deficient number, since it is larger than the sum of its proper divisors (240491797).

1683442523 is an equidigital number, since it uses as much as digits as its factorization.

1683442523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240491796.

The product of its digits is 138240, while the sum is 38.

The square root of 1683442523 is about 41029.7760534956. The cubic root of 1683442523 is about 1189.5958241832.

The spelling of 1683442523 in words is "one billion, six hundred eighty-three million, four hundred forty-two thousand, five hundred twenty-three".