136424 has 8 divisors (see below), whose sum is σ = 255810. Its totient is φ = 68208.

The previous prime is 136421. The next prime is 136429. The reversal of 136424 is 424631.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 122500 + 13924 = 350^2 + 118^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×136424² = 37223015552, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 136396 and 136405.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 136424.

It is not an unprimeable number, because it can be changed into a prime (136421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8519 + ... + 8534.

2¹³⁶⁴²⁴ is an apocalyptic number.

It is an amenable number.

136424 is a deficient number, since it is larger than the sum of its proper divisors (119386).

136424 is a wasteful number, since it uses less digits than its factorization.

136424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17059 (or 17055 counting only the distinct ones).

The product of its digits is 576, while the sum is 20.

The square root of 136424 is about 369.3561966449. The cubic root of 136424 is about 51.4790186943.

The spelling of 136424 in words is "one hundred thirty-six thousand, four hundred twenty-four".