16245905 has 16 divisors (see below), whose sum is σ = 21196560. Its totient is φ = 11881728.

The previous prime is 16245883. The next prime is 16245919. The reversal of 16245905 is 50954261.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1183744 + 15062161 = 1088^2 + 3881^2 .

It is a cyclic number.

It is not a de Polignac number, because 16245905 - 2¹⁶ = 16180369 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5939 + ... + 8231.

It is an arithmetic number, because the mean of its divisors is an integer number (1324785).

Almost surely, 2^16245905 is an apocalyptic number.

It is an amenable number.

16245905 is a deficient number, since it is larger than the sum of its proper divisors (4950655).

16245905 is a wasteful number, since it uses less digits than its factorization.

16245905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2420.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 16245905 is about 4030.6209199080. The cubic root of 16245905 is about 253.2685728201.

The spelling of 16245905 in words is "sixteen million, two hundred forty-five thousand, nine hundred five".