135245400444 has 72 divisors (see below), whose sum is σ = 426227937408. Its totient is φ = 35128674720.

The previous prime is 135245400427. The next prime is 135245400491. The reversal of 135245400444 is 444004542531.

135245400444 is a `hidden beast` number, since 1 + 3 + 5 + 245 + 400 + 4 + 4 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 135245400399 and 135245400408.

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, 24392142 + ... + 24397685.

It is an arithmetic number, because the mean of its divisors is an integer number (5919832464).

Almost surely, 2^135245400444 is an apocalyptic number.

135245400444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

135245400444 is an abundant number, since it is smaller than the sum of its proper divisors (290982536964).

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

135245400444 is a wasteful number, since it uses less digits than its factorization.

135245400444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48789855 (or 48789850 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 36.

Adding to 135245400444 its reverse (444004542531), we get a palindrome (579249942975).

The spelling of 135245400444 in words is "one hundred thirty-five billion, two hundred forty-five million, four hundred thousand, four hundred forty-four".