139203123540 has 96 divisors (see below), whose sum is σ = 433291385856. Its totient is φ = 33160043520.

The previous prime is 139203123539. The next prime is 139203123541. The reversal of 139203123540 is 45321302931.

It is an interprime number because it is at equal distance from previous prime (139203123539) and next prime (139203123541).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139203123541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2854297 + ... + 2902656.

It is an arithmetic number, because the mean of its divisors is an integer number (4513451936).

Almost surely, 2^139203123540 is an apocalyptic number.

139203123540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139203123540 is an abundant number, since it is smaller than the sum of its proper divisors (294088262316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139203123540 is a wasteful number, since it uses less digits than its factorization.

139203123540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5757009 (or 5757007 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 33.

The spelling of 139203123540 in words is "one hundred thirty-nine billion, two hundred three million, one hundred twenty-three thousand, five hundred forty".