139128301284 has 48 divisors (see below), whose sum is σ = 371556974208. Its totient is φ = 39692210688.

The previous prime is 139128301267. The next prime is 139128301297. The reversal of 139128301284 is 482103821931.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1166389 + ... + 1280124.

It is an arithmetic number, because the mean of its divisors is an integer number (7740770296).

Almost surely, 2^139128301284 is an apocalyptic number.

139128301284 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

139128301284 is an abundant number, since it is smaller than the sum of its proper divisors (232428672924).

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

139128301284 is a wasteful number, since it uses less digits than its factorization.

139128301284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2447204 (or 2447202 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The spelling of 139128301284 in words is "one hundred thirty-nine billion, one hundred twenty-eight million, three hundred one thousand, two hundred eighty-four".