133400134432520 has 32 divisors (see below), whose sum is σ = 300150638818200. Its totient is φ = 53359993978368.

The previous prime is 133400134432501. The next prime is 133400134432531. The reversal of 133400134432520 is 25234431004331.

It can be written as a sum of positive squares in 4 ways, for example, as 19497152451364 + 113902981981156 = 4415558^2 + 10672534^2 .

It is a super-2 number, since 2×133400134432520² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57782126 + ... + 60046434.

Almost surely, 2^{133400134432520} is an apocalyptic number.

133400134432520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133400134432520 is an abundant number, since it is smaller than the sum of its proper divisors (166750504385680).

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

133400134432520 is a wasteful number, since it uses less digits than its factorization.

133400134432520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3737177 (or 3737173 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 35.

Adding to 133400134432520 its reverse (25234431004331), we get a palindrome (158634565436851).

The spelling of 133400134432520 in words is "one hundred thirty-three trillion, four hundred billion, one hundred thirty-four million, four hundred thirty-two thousand, five hundred twenty".