102544145 has 32 divisors (see below), whose sum is σ = 139968000. Its totient is φ = 71438080.

The previous prime is 102544129. The next prime is 102544151. The reversal of 102544145 is 541445201.

It is not a de Polignac number, because 102544145 - 2⁴ = 102544129 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 381071 + ... + 381339.

It is an arithmetic number, because the mean of its divisors is an integer number (4374000).

Almost surely, 2^102544145 is an apocalyptic number.

It is an amenable number.

102544145 is a deficient number, since it is larger than the sum of its proper divisors (37423855).

102544145 is a wasteful number, since it uses less digits than its factorization.

102544145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553.

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

The square root of 102544145 is about 10126.4082971209. The cubic root of 102544145 is about 468.0622573445.

Adding to 102544145 its reverse (541445201), we get a palindrome (643989346).

The spelling of 102544145 in words is "one hundred two million, five hundred forty-four thousand, one hundred forty-five".