16225145 has 24 divisors (see below), whose sum is σ = 20985480. Its totient is φ = 12038400.

The previous prime is 16225141. The next prime is 16225163. The reversal of 16225145 is 54152261.

It can be written as a sum of positive squares in 4 ways, for example, as 3055504 + 13169641 = 1748^2 + 3629^2 .

It is not a de Polignac number, because 16225145 - 2² = 16225141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16225141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 160595 + ... + 160695.

It is an arithmetic number, because the mean of its divisors is an integer number (874395).

Almost surely, 2^16225145 is an apocalyptic number.

It is an amenable number.

16225145 is a deficient number, since it is larger than the sum of its proper divisors (4760335).

16225145 is a wasteful number, since it uses less digits than its factorization.

16225145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233 (or 214 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

The square root of 16225145 is about 4028.0448110715. The cubic root of 16225145 is about 253.1606462018.

The spelling of 16225145 in words is "sixteen million, two hundred twenty-five thousand, one hundred forty-five".