1326135546 has 48 divisors (see below), whose sum is σ = 2970040320. Its totient is φ = 427200480.

The previous prime is 1326135527. The next prime is 1326135553. The reversal of 1326135546 is 6455316231.

1326135546 is a `hidden beast` number, since 1 + 3 + 261 + 355 + 46 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1326135546.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 617751 + ... + 619893.

It is an arithmetic number, because the mean of its divisors is an integer number (61875840).

Almost surely, 2^1326135546 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1326135546, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1485020160).

1326135546 is an abundant number, since it is smaller than the sum of its proper divisors (1643904774).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1326135546 is a wasteful number, since it uses less digits than its factorization.

1326135546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3291 (or 3288 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 1326135546 is about 36416.1440298118. The cubic root of 1326135546 is about 1098.6582941706.

The spelling of 1326135546 in words is "one billion, three hundred twenty-six million, one hundred thirty-five thousand, five hundred forty-six".