135616537 has 8 divisors (see below), whose sum is σ = 159990272. Its totient is φ = 112492800.

The previous prime is 135616529. The next prime is 135616541. The reversal of 135616537 is 735616531.

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

It is not a de Polignac number, because 135616537 - 2³ = 135616529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135616496 and 135616505.

It is not an unprimeable number, because it can be changed into a prime (135616567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 312264 + ... + 312697.

It is an arithmetic number, because the mean of its divisors is an integer number (19998784).

Almost surely, 2^135616537 is an apocalyptic number.

It is an amenable number.

135616537 is a deficient number, since it is larger than the sum of its proper divisors (24373735).

135616537 is an equidigital number, since it uses as much as digits as its factorization.

135616537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624999.

The product of its digits is 56700, while the sum is 37.

The square root of 135616537 is about 11645.4513437651. The cubic root of 135616537 is about 513.7725340625.

The spelling of 135616537 in words is "one hundred thirty-five million, six hundred sixteen thousand, five hundred thirty-seven".