139440569157 has 24 divisors (see below), whose sum is σ = 213280831296. Its totient is φ = 87484415616.

The previous prime is 139440569129. The next prime is 139440569161. The reversal of 139440569157 is 751965044931.

139440569157 is a `hidden beast` number, since 1 + 39 + 4 + 40 + 569 + 1 + 5 + 7 = 666.

139440569157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 139440569157 - 2⁷ = 139440569029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139440569197) 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 23 ways as a sum of consecutive naturals, for example, 2060818 + ... + 2127404.

It is an arithmetic number, because the mean of its divisors is an integer number (8886701304).

Almost surely, 2^139440569157 is an apocalyptic number.

139440569157 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

139440569157 is a deficient number, since it is larger than the sum of its proper divisors (73840262139).

139440569157 is a wasteful number, since it uses less digits than its factorization.

139440569157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80297 (or 80294 counting only the distinct ones).

The product of its (nonzero) digits is 4082400, while the sum is 54.

The spelling of 139440569157 in words is "one hundred thirty-nine billion, four hundred forty million, five hundred sixty-nine thousand, one hundred fifty-seven".