102445145 has 16 divisors (see below), whose sum is σ = 142000128. Its totient is φ = 70122240.

The previous prime is 102445129. The next prime is 102445163. The reversal of 102445145 is 541544201.

It is not a de Polignac number, because 102445145 - 2⁴ = 102445129 is a prime.

It is a Duffinian number.

It is a Curzon number.

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, 53849 + ... + 55718.

It is an arithmetic number, because the mean of its divisors is an integer number (8875008).

Almost surely, 2^102445145 is an apocalyptic number.

It is an amenable number.

102445145 is a deficient number, since it is larger than the sum of its proper divisors (39554983).

102445145 is a wasteful number, since it uses less digits than its factorization.

102445145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109600.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 102445145 is about 10121.5189077529. The cubic root of 102445145 is about 467.9115805029.

Adding to 102445145 its reverse (541544201), we get a palindrome (643989346).

The spelling of 102445145 in words is "one hundred two million, four hundred forty-five thousand, one hundred forty-five".