135540205492 has 12 divisors (see below), whose sum is σ = 240053135616. Its totient is φ = 66953595320.

The previous prime is 135540205477. The next prime is 135540205517. The reversal of 135540205492 is 294502045531.

It is a super-2 number, since 2×135540205492² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204126484 + ... + 204127147.

It is an arithmetic number, because the mean of its divisors is an integer number (20004427968).

Almost surely, 2^135540205492 is an apocalyptic number.

It is an amenable number.

135540205492 is a deficient number, since it is larger than the sum of its proper divisors (104512930124).

135540205492 is a wasteful number, since it uses less digits than its factorization.

135540205492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408253718 (or 408253716 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 135540205492 in words is "one hundred thirty-five billion, five hundred forty million, two hundred five thousand, four hundred ninety-two".