135523450 has 24 divisors (see below), whose sum is σ = 258225660. Its totient is φ = 52886400.

The previous prime is 135523417. The next prime is 135523459. The reversal of 135523450 is 54325531.

135523450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 25210441 + 110313009 = 5021^2 + 10503^2 .

It is not an unprimeable number, because it can be changed into a prime (135523459) 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, 31005 + ... + 35104.

Almost surely, 2^135523450 is an apocalyptic number.

135523450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135523450 is a deficient number, since it is larger than the sum of its proper divisors (122702210).

135523450 is a wasteful number, since it uses less digits than its factorization.

135523450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66162 (or 66157 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 135523450 is about 11641.4539469948. The cubic root of 135523450 is about 513.6549562420.

Adding to 135523450 its reverse (54325531), we get a palindrome (189848981).

The spelling of 135523450 in words is "one hundred thirty-five million, five hundred twenty-three thousand, four hundred fifty".