1535132223000 has 256 divisors, whose sum is σ = 5345677209600. Its totient is φ = 407531260800.

The previous prime is 1535132222977. The next prime is 1535132223019. The reversal of 1535132223000 is 3222315351.

It is a happy number.

1535132223000 is a `hidden beast` number, since 1 + 5 + 35 + 1 + 322 + 2 + 300 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 5893519 + ... + 6148481.

It is an arithmetic number, because the mean of its divisors is an integer number (20881551600).

Almost surely, 2^{1535132223000} is an apocalyptic number.

1535132223000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1535132223000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2672838604800).

1535132223000 is an abundant number, since it is smaller than the sum of its proper divisors (3810544986600).

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

1535132223000 is a wasteful number, since it uses less digits than its factorization.

1535132223000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255216 (or 255196 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

Adding to 1535132223000 its reverse (3222315351), we get a palindrome (1538354538351).

The spelling of 1535132223000 in words is "one trillion, five hundred thirty-five billion, one hundred thirty-two million, two hundred twenty-three thousand".