136923984 has 60 divisors (see below), whose sum is σ = 405745236. Its totient is φ = 42955776.

The previous prime is 136923979. The next prime is 136924031. The reversal of 136923984 is 489329631.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 67568400 + 69355584 = 8220^2 + 8328^2 .

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25519 + ... + 30414.

Almost surely, 2^136923984 is an apocalyptic number.

It is an amenable number.

136923984 is an abundant number, since it is smaller than the sum of its proper divisors (268821252).

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

136923984 is a wasteful number, since it uses less digits than its factorization.

136923984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55964 (or 55955 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 136923984 is about 11701.4522175668. The cubic root of 136923984 is about 515.4183097094.

It can be divided in two parts, 136 and 923984, that added together give a triangular number (924120 = T₁₃₅₉).

The spelling of 136923984 in words is "one hundred thirty-six million, nine hundred twenty-three thousand, nine hundred eighty-four".