139124046854 has 48 divisors (see below), whose sum is σ = 246969097200. Its totient is φ = 58349953536.

The previous prime is 139124046847. The next prime is 139124046857. The reversal of 139124046854 is 458640421931.

It is a junction number, because it is equal to n+sod(n) for n = 139124046799 and 139124046808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139124046857) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101324 + ... + 537135.

It is an arithmetic number, because the mean of its divisors is an integer number (5145189525).

Almost surely, 2^139124046854 is an apocalyptic number.

139124046854 is a deficient number, since it is larger than the sum of its proper divisors (107845050346).

139124046854 is a wasteful number, since it uses less digits than its factorization.

139124046854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638537 (or 638520 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 47.

The spelling of 139124046854 in words is "one hundred thirty-nine billion, one hundred twenty-four million, forty-six thousand, eight hundred fifty-four".