1403613 has 12 divisors (see below), whose sum is σ = 2052960. Its totient is φ = 923976.

The previous prime is 1403609. The next prime is 1403617. The reversal of 1403613 is 3163041.

It is an interprime number because it is at equal distance from previous prime (1403609) and next prime (1403617).

It is not a de Polignac number, because 1403613 - 2² = 1403609 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1403617) 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 11 ways as a sum of consecutive naturals, for example, 193 + ... + 1686.

It is an arithmetic number, because the mean of its divisors is an integer number (171080).

2^1403613 is an apocalyptic number.

It is an amenable number.

1403613 is a deficient number, since it is larger than the sum of its proper divisors (649347).

1403613 is a wasteful number, since it uses less digits than its factorization.

1403613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1968 (or 1965 counting only the distinct ones).

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

The square root of 1403613 is about 1184.7417440101. The cubic root of 1403613 is about 111.9650454270.

Adding to 1403613 its reverse (3163041), we get a palindrome (4566654).

It can be divided in two parts, 1403 and 613, that added together give a triangular number (2016 = T₆₃).

The spelling of 1403613 in words is "one million, four hundred three thousand, six hundred thirteen".