135815716 has 9 divisors (see below), whose sum is σ = 237718299. Its totient is φ = 67896204.

The previous prime is 135815711. The next prime is 135815723. The reversal of 135815716 is 617518531.

The square root of 135815716 is 11654.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135815711) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 20395 + ... + 26221.

Almost surely, 2^135815716 is an apocalyptic number.

135815716 is the 11654-th square number.

It is an amenable number.

135815716 is a deficient number, since it is larger than the sum of its proper divisors (101902583).

135815716 is an frugal number, since it uses more digits than its factorization.

135815716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11658 (or 5829 counting only the distinct ones).

The product of its digits is 25200, while the sum is 37.

The cubic root of 135815716 is about 514.0239356596.

The spelling of 135815716 in words is "one hundred thirty-five million, eight hundred fifteen thousand, seven hundred sixteen".