133443400187 has 2 divisors, whose sum is σ = 133443400188. Its totient is φ = 133443400186.

The previous prime is 133443400121. The next prime is 133443400217. The reversal of 133443400187 is 781004344331.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133443400187 - 2⁸ = 133443399931 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133443400187.

It is not a weakly prime, because it can be changed into another prime (133443400117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66721700093 + 66721700094.

It is an arithmetic number, because the mean of its divisors is an integer number (66721700094).

Almost surely, 2^133443400187 is an apocalyptic number.

133443400187 is a deficient number, since it is larger than the sum of its proper divisors (1).

133443400187 is an equidigital number, since it uses as much as digits as its factorization.

133443400187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 38.

The spelling of 133443400187 in words is "one hundred thirty-three billion, four hundred forty-three million, four hundred thousand, one hundred eighty-seven".