136673880 has 192 divisors, whose sum is σ = 498666240. Its totient is φ = 29349888.

The previous prime is 136673879. The next prime is 136673891. The reversal of 136673880 is 88376631.

136673880 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

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, 242479 + ... + 243041.

It is an arithmetic number, because the mean of its divisors is an integer number (2597220).

Almost surely, 2^136673880 is an apocalyptic number.

136673880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136673880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249333120).

136673880 is an abundant number, since it is smaller than the sum of its proper divisors (361992360).

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

136673880 is a wasteful number, since it uses less digits than its factorization.

136673880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618 (or 597 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 136673880 is about 11690.7604543075. The cubic root of 136673880 is about 515.1042991069.

The spelling of 136673880 in words is "one hundred thirty-six million, six hundred seventy-three thousand, eight hundred eighty".