135647951 has 8 divisors (see below), whose sum is σ = 141662304. Its totient is φ = 129643360.

The previous prime is 135647933. The next prime is 135647989. The reversal of 135647951 is 159746531.

135647951 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 135647951 - 2⁶ = 135647887 is a prime.

It is a super-2 number, since 2×135647951² = 36800733220996802, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135647899 and 135647908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135647851) 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, 53525 + ... + 56001.

It is an arithmetic number, because the mean of its divisors is an integer number (17707788).

Almost surely, 2^135647951 is an apocalyptic number.

135647951 is a deficient number, since it is larger than the sum of its proper divisors (6014353).

135647951 is a wasteful number, since it uses less digits than its factorization.

135647951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4881.

The product of its digits is 113400, while the sum is 41.

The square root of 135647951 is about 11646.8000326270. The cubic root of 135647951 is about 513.8122008188.

The spelling of 135647951 in words is "one hundred thirty-five million, six hundred forty-seven thousand, nine hundred fifty-one".