102508845 has 16 divisors (see below), whose sum is σ = 164146560. Its totient is φ = 54627264.

The previous prime is 102508829. The next prime is 102508849. The reversal of 102508845 is 548805201.

It is not a de Polignac number, because 102508845 - 2⁴ = 102508829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102508849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26367 + ... + 30003.

It is an arithmetic number, because the mean of its divisors is an integer number (10259160).

Almost surely, 2^102508845 is an apocalyptic number.

102508845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102508845 is a deficient number, since it is larger than the sum of its proper divisors (61637715).

102508845 is a wasteful number, since it uses less digits than its factorization.

102508845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5524.

The product of its (nonzero) digits is 12800, while the sum is 33.

The square root of 102508845 is about 10124.6651796492. The cubic root of 102508845 is about 468.0085422869.

The spelling of 102508845 in words is "one hundred two million, five hundred eight thousand, eight hundred forty-five".