102016445 has 6 divisors (see below), whose sum is σ = 122446842. Its totient is φ = 81595088.

The previous prime is 102016441. The next prime is 102016457. The reversal of 102016445 is 544610201.

It can be written as a sum of positive squares in 3 ways, for example, as 15507844 + 86508601 = 3938^2 + 9301^2 .

It is not a de Polignac number, because 102016445 - 2² = 102016441 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 102016445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102016441) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20327 + ... + 24843.

It is an arithmetic number, because the mean of its divisors is an integer number (20407807).

Almost surely, 2^102016445 is an apocalyptic number.

It is an amenable number.

102016445 is a deficient number, since it is larger than the sum of its proper divisors (20430397).

102016445 is an frugal number, since it uses more digits than its factorization.

102016445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9039 (or 4522 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 102016445 is about 10100.3190543666. The cubic root of 102016445 is about 467.2579814358.

Adding to 102016445 its reverse (544610201), we get a palindrome (646626646).

The spelling of 102016445 in words is "one hundred two million, sixteen thousand, four hundred forty-five".