135115437 has 16 divisors (see below), whose sum is σ = 187122240. Its totient is φ = 86618112.

The previous prime is 135115423. The next prime is 135115447. The reversal of 135115437 is 734511531.

It is not a de Polignac number, because 135115437 - 2⁶ = 135115373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135115447) 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 15 ways as a sum of consecutive naturals, for example, 19338 + ... + 25380.

It is an arithmetic number, because the mean of its divisors is an integer number (11695140).

Almost surely, 2^135115437 is an apocalyptic number.

It is an amenable number.

135115437 is a deficient number, since it is larger than the sum of its proper divisors (52006803).

135115437 is a wasteful number, since it uses less digits than its factorization.

135115437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6332.

The product of its digits is 6300, while the sum is 30.

The square root of 135115437 is about 11623.9165946767. The cubic root of 135115437 is about 513.1389604895.

Adding to 135115437 its reverse (734511531), we get a palindrome (869626968).

The spelling of 135115437 in words is "one hundred thirty-five million, one hundred fifteen thousand, four hundred thirty-seven".