133140432421 has 8 divisors (see below), whose sum is σ = 133749221760. Its totient is φ = 132532074528.

The previous prime is 133140432409. The next prime is 133140432433. The reversal of 133140432421 is 124234041331.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (133140432409) and next prime (133140432433).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133140432421 - 2¹⁵ = 133140399653 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133140432421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133140432221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 519030 + ... + 731896.

It is an arithmetic number, because the mean of its divisors is an integer number (16718652720).

Almost surely, 2^133140432421 is an apocalyptic number.

It is an amenable number.

133140432421 is a deficient number, since it is larger than the sum of its proper divisors (608789339).

133140432421 is a wasteful number, since it uses less digits than its factorization.

133140432421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215723.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 133140432421 its reverse (124234041331), we get a palindrome (257374473752).

The spelling of 133140432421 in words is "one hundred thirty-three billion, one hundred forty million, four hundred thirty-two thousand, four hundred twenty-one".