16090601 has 4 divisors (see below), whose sum is σ = 16098900. Its totient is φ = 16082304.

The previous prime is 16090589. The next prime is 16090609. The reversal of 16090601 is 10609061.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 10609061 = 241 ⋅44021.

It can be written as a sum of positive squares in 2 ways, for example, as 15366400 + 724201 = 3920^2 + 851^2 .

It is a cyclic number.

It is not a de Polignac number, because 16090601 - 2⁶ = 16090537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16090609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 485 + ... + 5693.

It is an arithmetic number, because the mean of its divisors is an integer number (4024725).

Almost surely, 2^16090601 is an apocalyptic number.

It is an amenable number.

16090601 is a deficient number, since it is larger than the sum of its proper divisors (8299).

16090601 is an equidigital number, since it uses as much as digits as its factorization.

16090601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8298.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 16090601 is about 4011.3091379249. The cubic root of 16090601 is about 252.4589404856.

Adding to 16090601 its reverse (10609061), we get a palindrome (26699662).

It can be divided in two parts, 1609060 and 1, that added together give a palindrome (1609061).

The spelling of 16090601 in words is "sixteen million, ninety thousand, six hundred one".