1616725 has 12 divisors (see below), whose sum is σ = 2187360. Its totient is φ = 1175600.

The previous prime is 1616723. The next prime is 1616749. The reversal of 1616725 is 5276161.

It is not a de Polignac number, because 1616725 - 2¹ = 1616723 is a prime.

It is a super-2 number, since 2×1616725² = 5227599451250, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 1616693 and 1616702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1616723) 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 11 ways as a sum of consecutive naturals, for example, 2665 + ... + 3214.

It is an arithmetic number, because the mean of its divisors is an integer number (182280).

2^1616725 is an apocalyptic number.

It is an amenable number.

1616725 is a deficient number, since it is larger than the sum of its proper divisors (570635).

1616725 is a wasteful number, since it uses less digits than its factorization.

1616725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5900 (or 5895 counting only the distinct ones).

The product of its digits is 2520, while the sum is 28.

The square root of 1616725 is about 1271.5050137534. The cubic root of 1616725 is about 117.3668326855.

It can be divided in two parts, 161 and 6725, that added together give a palindrome (6886).

The spelling of 1616725 in words is "one million, six hundred sixteen thousand, seven hundred twenty-five".