102545443 has 48 divisors (see below), whose sum is σ = 141809920. Its totient is φ = 72135360.

The previous prime is 102545423. The next prime is 102545449. The reversal of 102545443 is 344545201.

It is not a de Polignac number, because 102545443 - 2¹⁷ = 102414371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102545449) 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, 737668 + ... + 737806.

Almost surely, 2^102545443 is an apocalyptic number.

102545443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

102545443 is a deficient number, since it is larger than the sum of its proper divisors (39264477).

102545443 is a wasteful number, since it uses less digits than its factorization.

102545443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 237 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 102545443 is about 10126.4723867692. The cubic root of 102545443 is about 468.0642322411.

It can be divided in two parts, 102 and 545443, that added together give a palindrome (545545).

The spelling of 102545443 in words is "one hundred two million, five hundred forty-five thousand, four hundred forty-three".