1613401 has 4 divisors (see below), whose sum is σ = 1630132. Its totient is φ = 1596672.

The previous prime is 1613399. The next prime is 1613407. The reversal of 1613401 is 1043161.

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 455625 + 1157776 = 675^2 + 1076^2 .

It is a cyclic number.

It is not a de Polignac number, because 1613401 - 2¹ = 1613399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1613407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8220 + ... + 8413.

It is an arithmetic number, because the mean of its divisors is an integer number (407533).

2^1613401 is an apocalyptic number.

It is an amenable number.

1613401 is a deficient number, since it is larger than the sum of its proper divisors (16731).

1613401 is an equidigital number, since it uses as much as digits as its factorization.

1613401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16730.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1613401 is about 1270.1972287798. The cubic root of 1613401 is about 117.2863417700.

Adding to 1613401 its reverse (1043161), we get a palindrome (2656562).

The spelling of 1613401 in words is "one million, six hundred thirteen thousand, four hundred one".