135011221546 has 8 divisors (see below), whose sum is σ = 202625077824. Its totient is φ = 67469528940.

The previous prime is 135011221517. The next prime is 135011221549. The reversal of 135011221546 is 645122110531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (135011221549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18036240 + ... + 18043723.

It is an arithmetic number, because the mean of its divisors is an integer number (25328134728).

Almost surely, 2^135011221546 is an apocalyptic number.

135011221546 is a deficient number, since it is larger than the sum of its proper divisors (67613856278).

135011221546 is a wasteful number, since it uses less digits than its factorization.

135011221546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36081836.

The product of its (nonzero) digits is 7200, while the sum is 31.

The spelling of 135011221546 in words is "one hundred thirty-five billion, eleven million, two hundred twenty-one thousand, five hundred forty-six".