1616361 has 8 divisors (see below), whose sum is σ = 2175360. Its totient is φ = 1067472.

The previous prime is 1616359. The next prime is 1616401. The reversal of 1616361 is 1636161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1616361 - 2¹ = 1616359 is a prime.

It is a super-2 number, since 2×1616361² = 5225245764642, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (1616161) 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 7 ways as a sum of consecutive naturals, for example, 2145 + ... + 2798.

It is an arithmetic number, because the mean of its divisors is an integer number (271920).

2^1616361 is an apocalyptic number.

It is an amenable number.

1616361 is a deficient number, since it is larger than the sum of its proper divisors (558999).

1616361 is a wasteful number, since it uses less digits than its factorization.

1616361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5055.

The product of its digits is 648, while the sum is 24.

The square root of 1616361 is about 1271.3618682342. The cubic root of 1616361 is about 117.3580237799.

The spelling of 1616361 in words is "one million, six hundred sixteen thousand, three hundred sixty-one".