139012640025 has 24 divisors (see below), whose sum is σ = 262667694144. Its totient is φ = 63548635200.

The previous prime is 139012639967. The next prime is 139012640051. The reversal of 139012640025 is 520046210931.

It is not a de Polignac number, because 139012640025 - 2¹⁰ = 139012639001 is a prime.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 132392466 + ... + 132393515.

It is an arithmetic number, because the mean of its divisors is an integer number (10944487256).

Almost surely, 2^139012640025 is an apocalyptic number.

139012640025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

139012640025 is a deficient number, since it is larger than the sum of its proper divisors (123655054119).

139012640025 is a wasteful number, since it uses less digits than its factorization.

139012640025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264786001 (or 264785996 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

Adding to 139012640025 its reverse (520046210931), we get a palindrome (659058850956).

The spelling of 139012640025 in words is "one hundred thirty-nine billion, twelve million, six hundred forty thousand, twenty-five".