133145452044 has 72 divisors (see below), whose sum is σ = 367227544320. Its totient is φ = 40339538400.

The previous prime is 133145452019. The next prime is 133145452057. The reversal of 133145452044 is 440254541331.

133145452044 is a `hidden beast` number, since 1 + 33 + 14 + 54 + 520 + 44 = 666.

It is a super-2 number, since 2×133145452044² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2299489 + ... + 2356679.

It is an arithmetic number, because the mean of its divisors is an integer number (5100382560).

Almost surely, 2^133145452044 is an apocalyptic number.

It is an amenable number.

133145452044 is an abundant number, since it is smaller than the sum of its proper divisors (234082092276).

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

133145452044 is a wasteful number, since it uses less digits than its factorization.

133145452044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63091 (or 63086 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 133145452044 its reverse (440254541331), we get a palindrome (573399993375).

The spelling of 133145452044 in words is "one hundred thirty-three billion, one hundred forty-five million, four hundred fifty-two thousand, forty-four".