135431432 has 32 divisors (see below), whose sum is σ = 261424800. Its totient is φ = 65746944.

The previous prime is 135431431. The next prime is 135431473. The reversal of 135431432 is 234134531.

It is not an unprimeable number, because it can be changed into a prime (135431431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37448 + ... + 40904.

It is an arithmetic number, because the mean of its divisors is an integer number (8169525).

Almost surely, 2^135431432 is an apocalyptic number.

It is an amenable number.

135431432 is a deficient number, since it is larger than the sum of its proper divisors (125993368).

135431432 is a wasteful number, since it uses less digits than its factorization.

135431432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3605 (or 3601 counting only the distinct ones).

The product of its digits is 4320, while the sum is 26.

The square root of 135431432 is about 11637.5011063372. The cubic root of 135431432 is about 513.5386757428.

Adding to 135431432 its reverse (234134531), we get a palindrome (369565963).

The spelling of 135431432 in words is "one hundred thirty-five million, four hundred thirty-one thousand, four hundred thirty-two".