1634013 has 10 divisors (see below), whose sum is σ = 2441054. Its totient is φ = 1089288.

The previous prime is 1634011. The next prime is 1634027. The reversal of 1634013 is 3104361.

It can be written as a sum of positive squares in only one way, i.e., 1633284 + 729 = 1278^2 + 27^2 .

It is not a de Polignac number, because 1634013 - 2¹ = 1634011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1634011) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 10006 + ... + 10167.

2^1634013 is an apocalyptic number.

It is an amenable number.

1634013 is a deficient number, since it is larger than the sum of its proper divisors (807041).

1634013 is an equidigital number, since it uses as much as digits as its factorization.

1634013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20185 (or 20176 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1634013 is about 1278.2851794494. The cubic root of 1634013 is about 117.7836935507.

Adding to 1634013 its reverse (3104361), we get a palindrome (4738374).

The spelling of 1634013 in words is "one million, six hundred thirty-four thousand, thirteen".