102545568139 has 16 divisors (see below), whose sum is σ = 117939324928. Its totient is φ = 87339645792.

The previous prime is 102545568121. The next prime is 102545568217. The reversal of 102545568139 is 931865545201.

It is not a de Polignac number, because 102545568139 - 2¹³ = 102545559947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102545568092 and 102545568101.

It is not an unprimeable number, because it can be changed into a prime (102545568119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 639562 + ... + 783664.

It is an arithmetic number, because the mean of its divisors is an integer number (7371207808).

Almost surely, 2^102545568139 is an apocalyptic number.

102545568139 is a deficient number, since it is larger than the sum of its proper divisors (15393756789).

102545568139 is a wasteful number, since it uses less digits than its factorization.

102545568139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144754.

The product of its (nonzero) digits is 1296000, while the sum is 49.

The spelling of 102545568139 in words is "one hundred two billion, five hundred forty-five million, five hundred sixty-eight thousand, one hundred thirty-nine".