135952731 has 6 divisors (see below), whose sum is σ = 196376180. Its totient is φ = 90635148.

The previous prime is 135952727. The next prime is 135952753. The reversal of 135952731 is 137259531.

135952731 is a `hidden beast` number, since 13 + 595 + 27 + 31 = 666.

135952731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 135952731 - 2² = 135952727 is a prime.

It is a super-2 number, since 2×135952731² = 36966290132716722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135952711) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7552921 + ... + 7552938.

Almost surely, 2^135952731 is an apocalyptic number.

135952731 is a deficient number, since it is larger than the sum of its proper divisors (60423449).

135952731 is a wasteful number, since it uses less digits than its factorization.

135952731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15105865 (or 15105862 counting only the distinct ones).

The product of its digits is 28350, while the sum is 36.

The square root of 135952731 is about 11659.8769719067. The cubic root of 135952731 is about 514.1967318603.

The spelling of 135952731 in words is "one hundred thirty-five million, nine hundred fifty-two thousand, seven hundred thirty-one".