16245945 has 48 divisors (see below), whose sum is σ = 29764800. Its totient is φ = 8184960.

The previous prime is 16245941. The next prime is 16245961. The reversal of 16245945 is 54954261.

16245945 is a `hidden beast` number, since 1 + 62 + 4 + 594 + 5 = 666.

It is not a de Polignac number, because 16245945 - 2² = 16245941 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16245941) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 76890 + ... + 77100.

It is an arithmetic number, because the mean of its divisors is an integer number (620100).

Almost surely, 2^16245945 is an apocalyptic number.

16245945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16245945 is a deficient number, since it is larger than the sum of its proper divisors (13518855).

16245945 is a wasteful number, since it uses less digits than its factorization.

16245945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310 (or 307 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 16245945 is about 4030.6258819196. The cubic root of 16245945 is about 253.2687806824.

It can be divided in two parts, 1624 and 5945, that added together give a square (7569 = 87²).

The spelling of 16245945 in words is "sixteen million, two hundred forty-five thousand, nine hundred forty-five".