133205152444 has 48 divisors (see below), whose sum is σ = 287102001088. Its totient is φ = 52660067328.

The previous prime is 133205152387. The next prime is 133205152447. The reversal of 133205152444 is 444251502331.

It is a super-2 number, since 2×133205152444² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133205152447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 402964 + ... + 654820.

Almost surely, 2^133205152444 is an apocalyptic number.

133205152444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

133205152444 is an abundant number, since it is smaller than the sum of its proper divisors (153896848644).

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

133205152444 is a wasteful number, since it uses less digits than its factorization.

133205152444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253334 (or 253332 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 133205152444 its reverse (444251502331), we get a palindrome (577456654775).

The spelling of 133205152444 in words is "one hundred thirty-three billion, two hundred five million, one hundred fifty-two thousand, four hundred forty-four".