135502471 has 16 divisors (see below), whose sum is σ = 158911200. Its totient is φ = 114403968.

The previous prime is 135502469. The next prime is 135502487. The reversal of 135502471 is 174205531.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 135502471 - 2¹ = 135502469 is a prime.

It is a super-3 number, since 3×135502471³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135502771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2296 + ... + 16621.

It is an arithmetic number, because the mean of its divisors is an integer number (9931950).

Almost surely, 2^135502471 is an apocalyptic number.

135502471 is a deficient number, since it is larger than the sum of its proper divisors (23408729).

135502471 is a wasteful number, since it uses less digits than its factorization.

135502471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18978.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 135502471 is about 11640.5528648772. The cubic root of 135502471 is about 513.6284503165.

The spelling of 135502471 in words is "one hundred thirty-five million, five hundred two thousand, four hundred seventy-one".