16122613 has 8 divisors (see below), whose sum is σ = 18384408. Its totient is φ = 14006784.

The previous prime is 16122607. The next prime is 16122619. The reversal of 16122613 is 31622161.

It is an interprime number because it is at equal distance from previous prime (16122607) and next prime (16122619).

It can be written as a sum of positive squares in 4 ways, for example, as 1697809 + 14424804 = 1303^2 + 3798^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 16122613 - 2⁵ = 16122581 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 (16122619) 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 7 ways as a sum of consecutive naturals, for example, 36256 + ... + 36697.

It is an arithmetic number, because the mean of its divisors is an integer number (2298051).

Almost surely, 2^16122613 is an apocalyptic number.

16122613 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

16122613 is a deficient number, since it is larger than the sum of its proper divisors (2261795).

16122613 is a wasteful number, since it uses less digits than its factorization.

16122613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72983.

The product of its digits is 432, while the sum is 22.

The square root of 16122613 is about 4015.2973737944. The cubic root of 16122613 is about 252.6262506239.

Adding to 16122613 its reverse (31622161), we get a palindrome (47744774).

It can be divided in two parts, 1612 and 2613, that added together give a square (4225 = 65²).

The spelling of 16122613 in words is "sixteen million, one hundred twenty-two thousand, six hundred thirteen".