135400450 has 36 divisors (see below), whose sum is σ = 258995142. Its totient is φ = 52633600.

The previous prime is 135400439. The next prime is 135400451. The reversal of 135400450 is 54004531.

It can be written as a sum of positive squares in 9 ways, for example, as 46908801 + 88491649 = 6849^2 + 9407^2 .

It is not an unprimeable number, because it can be changed into a prime (135400451) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 526722 + ... + 526978.

Almost surely, 2^135400450 is an apocalyptic number.

135400450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135400450 is a deficient number, since it is larger than the sum of its proper divisors (123594692).

135400450 is an equidigital number, since it uses as much as digits as its factorization.

135400450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567 (or 305 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 135400450 is about 11636.1699025066. The cubic root of 135400450 is about 513.4995128286.

Adding to 135400450 its reverse (54004531), we get a palindrome (189404981).

The spelling of 135400450 in words is "one hundred thirty-five million, four hundred thousand, four hundred fifty".