102502245 has 16 divisors (see below), whose sum is σ = 172635840. Its totient is φ = 51790464.

The previous prime is 102502243. The next prime is 102502271. The reversal of 102502245 is 542205201.

It is a happy number.

It is not a de Polignac number, because 102502245 - 2¹ = 102502243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102502243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179544 + ... + 180113.

It is an arithmetic number, because the mean of its divisors is an integer number (10789740).

Almost surely, 2^102502245 is an apocalyptic number.

102502245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102502245 is a deficient number, since it is larger than the sum of its proper divisors (70133595).

102502245 is a wasteful number, since it uses less digits than its factorization.

102502245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359684.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 102502245 is about 10124.3392376984. The cubic root of 102502245 is about 467.9984978767.

Adding to 102502245 its reverse (542205201), we get a palindrome (644707446).

The spelling of 102502245 in words is "one hundred two million, five hundred two thousand, two hundred forty-five".