135443475 has 24 divisors (see below), whose sum is σ = 248815920. Its totient is φ = 72236160.

The previous prime is 135443453. The next prime is 135443479. The reversal of 135443475 is 574344531.

135443475 is a `hidden beast` number, since 13 + 544 + 34 + 75 = 666.

It is not a de Polignac number, because 135443475 - 2⁵ = 135443443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135443479) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99654 + ... + 101003.

It is an arithmetic number, because the mean of its divisors is an integer number (10367330).

Almost surely, 2^135443475 is an apocalyptic number.

135443475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

135443475 is a deficient number, since it is larger than the sum of its proper divisors (113372445).

135443475 is a wasteful number, since it uses less digits than its factorization.

135443475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200676 (or 200665 counting only the distinct ones).

The product of its digits is 100800, while the sum is 36.

The square root of 135443475 is about 11638.0185169126. The cubic root of 135443475 is about 513.5538971304.

The spelling of 135443475 in words is "one hundred thirty-five million, four hundred forty-three thousand, four hundred seventy-five".