135457172 has 6 divisors (see below), whose sum is σ = 237050058. Its totient is φ = 67728584.

The previous prime is 135457169. The next prime is 135457177. The reversal of 135457172 is 271754531.

It can be written as a sum of positive squares in only one way, i.e., 109914256 + 25542916 = 10484^2 + 5054^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135457177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16932143 + ... + 16932150.

It is an arithmetic number, because the mean of its divisors is an integer number (39508343).

Almost surely, 2^135457172 is an apocalyptic number.

It is an amenable number.

135457172 is a deficient number, since it is larger than the sum of its proper divisors (101592886).

135457172 is a wasteful number, since it uses less digits than its factorization.

135457172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33864297 (or 33864295 counting only the distinct ones).

The product of its digits is 29400, while the sum is 35.

The square root of 135457172 is about 11638.6069613163. The cubic root of 135457172 is about 513.5712079449.

The spelling of 135457172 in words is "one hundred thirty-five million, four hundred fifty-seven thousand, one hundred seventy-two".