135487534 has 64 divisors (see below), whose sum is σ = 261015552. Its totient is φ = 51321600.

The previous prime is 135487487. The next prime is 135487543. The reversal of 135487534 is 435784531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 499819 + ... + 500089.

It is an arithmetic number, because the mean of its divisors is an integer number (4078368).

Almost surely, 2^135487534 is an apocalyptic number.

135487534 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

135487534 is a deficient number, since it is larger than the sum of its proper divisors (125528018).

135487534 is a wasteful number, since it uses less digits than its factorization.

135487534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401.

The product of its digits is 201600, while the sum is 40.

The square root of 135487534 is about 11639.9112539572. The cubic root of 135487534 is about 513.6095764908.

It can be divided in two parts, 1354 and 87534, that added together give a palindrome (88888).

The spelling of 135487534 in words is "one hundred thirty-five million, four hundred eighty-seven thousand, five hundred thirty-four".