133440133420 has 36 divisors (see below), whose sum is σ = 308015123472. Its totient is φ = 48523684000.

The previous prime is 133440133369. The next prime is 133440133439. The reversal of 133440133420 is 24331044331.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 27567856 + ... + 27572695.

It is an arithmetic number, because the mean of its divisors is an integer number (8555975652).

Almost surely, 2^133440133420 is an apocalyptic number.

133440133420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133440133420 is an abundant number, since it is smaller than the sum of its proper divisors (174574990052).

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

133440133420 is a wasteful number, since it uses less digits than its factorization.

133440133420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55140582 (or 55140569 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 133440133420 its reverse (24331044331), we get a palindrome (157771177751).

The spelling of 133440133420 in words is "one hundred thirty-three billion, four hundred forty million, one hundred thirty-three thousand, four hundred twenty".