136904143128 has 64 divisors (see below), whose sum is σ = 348198289920. Its totient is φ = 44847129600.

The previous prime is 136904143087. The next prime is 136904143139. The reversal of 136904143128 is 821341409631.

It is a super-2 number, since 2×136904143128² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 136904143128.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 400776 + ... + 659112.

It is an arithmetic number, because the mean of its divisors is an integer number (5440598280).

Almost surely, 2^136904143128 is an apocalyptic number.

It is an amenable number.

136904143128 is an abundant number, since it is smaller than the sum of its proper divisors (211294146792).

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

136904143128 is a wasteful number, since it uses less digits than its factorization.

136904143128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258728 (or 258724 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The spelling of 136904143128 in words is "one hundred thirty-six billion, nine hundred four million, one hundred forty-three thousand, one hundred twenty-eight".