133488521940 has 48 divisors (see below), whose sum is σ = 390018642048. Its totient is φ = 34049245824.

The previous prime is 133488521927. The next prime is 133488521987. The reversal of 133488521940 is 49125884331.

It is a super-2 number, since 2×133488521940² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 133488521940.

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 15 ways as a sum of consecutive naturals, for example, 48364027 + ... + 48366786.

It is an arithmetic number, because the mean of its divisors is an integer number (8125388376).

Almost surely, 2^133488521940 is an apocalyptic number.

133488521940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133488521940 is an abundant number, since it is smaller than the sum of its proper divisors (256530120108).

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

133488521940 is a wasteful number, since it uses less digits than its factorization.

133488521940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96730848 (or 96730846 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 48.

The spelling of 133488521940 in words is "one hundred thirty-three billion, four hundred eighty-eight million, five hundred twenty-one thousand, nine hundred forty".