16090945 has 8 divisors (see below), whose sum is σ = 20794536. Its totient is φ = 11882496.

The previous prime is 16090931. The next prime is 16090973. The reversal of 16090945 is 54909061.

16090945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1620529 + 14470416 = 1273^2 + 3804^2 .

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 16090945 - 2⁹ = 16090433 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16090945.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123712 + ... + 123841.

It is an arithmetic number, because the mean of its divisors is an integer number (2599317).

Almost surely, 2^16090945 is an apocalyptic number.

It is an amenable number.

16090945 is a deficient number, since it is larger than the sum of its proper divisors (4703591).

16090945 is a wasteful number, since it uses less digits than its factorization.

16090945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247571.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 16090945 is about 4011.3520164653. The cubic root of 16090945 is about 252.4607395744.

The spelling of 16090945 in words is "sixteen million, ninety thousand, nine hundred forty-five".