16112225 has 6 divisors (see below), whose sum is σ = 19979190. Its totient is φ = 12889760.

The previous prime is 16112207. The next prime is 16112231. The reversal of 16112225 is 52221161.

It can be written as a sum of positive squares in 3 ways, for example, as 4545424 + 11566801 = 2132^2 + 3401^2 .

It is not a de Polignac number, because 16112225 - 2¹⁶ = 16046689 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16112197 and 16112206.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 322220 + ... + 322269.

It is an arithmetic number, because the mean of its divisors is an integer number (3329865).

Almost surely, 2^16112225 is an apocalyptic number.

It is an amenable number.

16112225 is a deficient number, since it is larger than the sum of its proper divisors (3866965).

16112225 is an equidigital number, since it uses as much as digits as its factorization.

16112225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644499 (or 644494 counting only the distinct ones).

The product of its digits is 240, while the sum is 20.

The square root of 16112225 is about 4014.0036123551. The cubic root of 16112225 is about 252.5719822223.

Adding to 16112225 its reverse (52221161), we get a palindrome (68333386).

It can be divided in two parts, 16 and 112225, that multiplied together give a square (1795600 = 1340²).

The spelling of 16112225 in words is "sixteen million, one hundred twelve thousand, two hundred twenty-five".