136400 has 60 divisors (see below), whose sum is σ = 369024. Its totient is φ = 48000.

The previous prime is 136399. The next prime is 136403. The reversal of 136400 is 4631.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4385 + ... + 4415.

2¹³⁶⁴⁰⁰ is an apocalyptic number.

136400 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 136400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184512).

136400 is an abundant number, since it is smaller than the sum of its proper divisors (232624).

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

136400 is a wasteful number, since it uses less digits than its factorization.

136400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60 (or 49 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 136400 is about 369.3237062524. The cubic root of 136400 is about 51.4759997512.

Subtracting from 136400 its reverse (4631), we obtain a square (131769 = 363²).

The spelling of 136400 in words is "one hundred thirty-six thousand, four hundred".