139213885500 has 144 divisors (see below), whose sum is σ = 453340742400. Its totient is φ = 35926128000.

The previous prime is 139213885477. The next prime is 139213885523. The reversal of 139213885500 is 5588312931.

139213885500 is a `hidden beast` number, since 1 + 3 + 9 + 2 + 13 + 88 + 550 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (139213885477) and next prime (139213885523).

It is a super-2 number, since 2×139213885500² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 359475 + ... + 638474.

It is an arithmetic number, because the mean of its divisors is an integer number (3148199600).

Almost surely, 2^139213885500 is an apocalyptic number.

139213885500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139213885500 is an abundant number, since it is smaller than the sum of its proper divisors (314126856900).

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

139213885500 is a wasteful number, since it uses less digits than its factorization.

139213885500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998005 (or 997990 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The spelling of 139213885500 in words is "one hundred thirty-nine billion, two hundred thirteen million, eight hundred eighty-five thousand, five hundred".