1642013 has 4 divisors (see below), whose sum is σ = 1738620. Its totient is φ = 1545408.

The previous prime is 1641971. The next prime is 1642021. The reversal of 1642013 is 3102461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3102461 = 53 ⋅58537.

It can be written as a sum of positive squares in 2 ways, for example, as 597529 + 1044484 = 773^2 + 1022^2 .

It is a cyclic number.

It is not a de Polignac number, because 1642013 - 2¹⁴ = 1625629 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 96589 = 1642013 / (1 + 6 + 4 + 2 + 0 + 1 + 3).

It is a d-powerful number, because it can be written as 1 + 6⁶ + 4⁵ + 2³ + 0 + 1 + 3¹³ .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1641982 and 1642000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1642033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48278 + ... + 48311.

It is an arithmetic number, because the mean of its divisors is an integer number (434655).

2^1642013 is an apocalyptic number.

It is an amenable number.

1642013 is a deficient number, since it is larger than the sum of its proper divisors (96607).

1642013 is an equidigital number, since it uses as much as digits as its factorization.

1642013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96606.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1642013 is about 1281.4105509165. The cubic root of 1642013 is about 117.9756006241.

Adding to 1642013 its reverse (3102461), we get a palindrome (4744474).

The spelling of 1642013 in words is "one million, six hundred forty-two thousand, thirteen".