135404450 has 48 divisors (see below), whose sum is σ = 276678720. Its totient is φ = 49072320.

The previous prime is 135404449. The next prime is 135404461. The reversal of 135404450 is 54404531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18752 + ... + 24948.

It is an arithmetic number, because the mean of its divisors is an integer number (5764140).

Almost surely, 2^135404450 is an apocalyptic number.

135404450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135404450 is an abundant number, since it is smaller than the sum of its proper divisors (141274270).

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

135404450 is a wasteful number, since it uses less digits than its factorization.

135404450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6251 (or 6246 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 135404450 is about 11636.3417790988. The cubic root of 135404450 is about 513.5045693795.

Adding to 135404450 its reverse (54404531), we get a palindrome (189808981).

The spelling of 135404450 in words is "one hundred thirty-five million, four hundred four thousand, four hundred fifty".