102442534515 has 16 divisors (see below), whose sum is σ = 182120061600. Its totient is φ = 54636018336.

The previous prime is 102442534511. The next prime is 102442534547. The reversal of 102442534515 is 515435244201.

102442534515 is a `hidden beast` number, since 10 + 24 + 42 + 534 + 51 + 5 = 666.

It is not a de Polignac number, because 102442534515 - 2² = 102442534511 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102442534515.

It is not an unprimeable number, because it can be changed into a prime (102442534511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 379416660 + ... + 379416929.

It is an arithmetic number, because the mean of its divisors is an integer number (11382503850).

Almost surely, 2^102442534515 is an apocalyptic number.

102442534515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

102442534515 is a deficient number, since it is larger than the sum of its proper divisors (79677527085).

102442534515 is an equidigital number, since it uses as much as digits as its factorization.

102442534515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758833603 (or 758833597 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

Adding to 102442534515 its reverse (515435244201), we get a palindrome (617877778716).

The spelling of 102442534515 in words is "one hundred two billion, four hundred forty-two million, five hundred thirty-four thousand, five hundred fifteen".