133851951287 has 2 divisors, whose sum is σ = 133851951288. Its totient is φ = 133851951286.

The previous prime is 133851951269. The next prime is 133851951313. The reversal of 133851951287 is 782159158331.

It is a weak prime.

It is an emirp because it is prime and its reverse (782159158331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133851951287 - 2⁶ = 133851951223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133851951227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66925975643 + 66925975644.

It is an arithmetic number, because the mean of its divisors is an integer number (66925975644).

Almost surely, 2^133851951287 is an apocalyptic number.

133851951287 is a deficient number, since it is larger than the sum of its proper divisors (1).

133851951287 is an equidigital number, since it uses as much as digits as its factorization.

133851951287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1814400, while the sum is 53.

The spelling of 133851951287 in words is "one hundred thirty-three billion, eight hundred fifty-one million, nine hundred fifty-one thousand, two hundred eighty-seven".