135445400 has 24 divisors (see below), whose sum is σ = 314911020. Its totient is φ = 54178080.

The previous prime is 135445361. The next prime is 135445423. The reversal of 135445400 is 4544531.

It is a self number, because there is not a number n which added to its sum of digits gives 135445400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 338414 + ... + 338813.

Almost surely, 2^135445400 is an apocalyptic number.

135445400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135445400 is an abundant number, since it is smaller than the sum of its proper divisors (179465620).

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

135445400 is a wasteful number, since it uses less digits than its factorization.

135445400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677243 (or 677234 counting only the distinct ones).

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

The square root of 135445400 is about 11638.1012197007. The cubic root of 135445400 is about 513.5563300926.

Adding to 135445400 its reverse (4544531), we get a palindrome (139989931).

The spelling of 135445400 in words is "one hundred thirty-five million, four hundred forty-five thousand, four hundred".