135331537 has 8 divisors (see below), whose sum is σ = 147736512. Its totient is φ = 122943600.

The previous prime is 135331519. The next prime is 135331571. The reversal of 135331537 is 735133531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135331537 - 2²⁷ = 1113809 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 135331499 and 135331508.

It is not an unprimeable number, because it can be changed into a prime (135331507) 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 7 ways as a sum of consecutive naturals, for example, 16987 + ... + 23647.

It is an arithmetic number, because the mean of its divisors is an integer number (18467064).

Almost surely, 2^135331537 is an apocalyptic number.

It is an amenable number.

135331537 is a deficient number, since it is larger than the sum of its proper divisors (12404975).

135331537 is a wasteful number, since it uses less digits than its factorization.

135331537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8519.

The product of its digits is 14175, while the sum is 31.

The square root of 135331537 is about 11633.2083708666. The cubic root of 135331537 is about 513.4123816630.

The spelling of 135331537 in words is "one hundred thirty-five million, three hundred thirty-one thousand, five hundred thirty-seven".