136955784 has 128 divisors (see below), whose sum is σ = 405504000. Its totient is φ = 38525760.

The previous prime is 136955783. The next prime is 136955801. The reversal of 136955784 is 487559631.

Its product of digits (907200) is a multiple of the sum of its prime divisors (270).

It is not an unprimeable number, because it can be changed into a prime (136955783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1045399 + ... + 1045529.

It is an arithmetic number, because the mean of its divisors is an integer number (3168000).

Almost surely, 2^136955784 is an apocalyptic number.

136955784 is a gapful number since it is divisible by the number (14) 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 136955784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202752000).

136955784 is an abundant number, since it is smaller than the sum of its proper divisors (268548216).

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

136955784 is a wasteful number, since it uses less digits than its factorization.

136955784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288 (or 270 counting only the distinct ones).

The product of its digits is 907200, while the sum is 48.

The square root of 136955784 is about 11702.8109443843. The cubic root of 136955784 is about 515.4582078414.

The spelling of 136955784 in words is "one hundred thirty-six million, nine hundred fifty-five thousand, seven hundred eighty-four".