135457237 has 4 divisors (see below), whose sum is σ = 135698400. Its totient is φ = 135216076.

The previous prime is 135457229. The next prime is 135457249. The reversal of 135457237 is 732754531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 135457237 - 2³ = 135457229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135457196 and 135457205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135457277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119737 + ... + 120862.

It is an arithmetic number, because the mean of its divisors is an integer number (33924600).

Almost surely, 2^135457237 is an apocalyptic number.

It is an amenable number.

135457237 is a deficient number, since it is larger than the sum of its proper divisors (241163).

135457237 is an equidigital number, since it uses as much as digits as its factorization.

135457237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241162.

The product of its digits is 88200, while the sum is 37.

The square root of 135457237 is about 11638.6097537464. The cubic root of 135457237 is about 513.5712900918.

The spelling of 135457237 in words is "one hundred thirty-five million, four hundred fifty-seven thousand, two hundred thirty-seven".