133193951749 has 8 divisors (see below), whose sum is σ = 136175927040. Its totient is φ = 130218145776.

The previous prime is 133193951747. The next prime is 133193951771. The reversal of 133193951749 is 947159391331.

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 133193951749 - 2¹ = 133193951747 is a prime.

It is a super-3 number, since 3×133193951749³ (a number of 34 digits) contains 333 as substring.

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 133193951749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133193951747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1498654 + ... + 1585039.

It is an arithmetic number, because the mean of its divisors is an integer number (17021990880).

Almost surely, 2^133193951749 is an apocalyptic number.

It is an amenable number.

133193951749 is a deficient number, since it is larger than the sum of its proper divisors (2981975291).

133193951749 is an equidigital number, since it uses as much as digits as its factorization.

133193951749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3084659.

The product of its digits is 2755620, while the sum is 55.

The spelling of 133193951749 in words is "one hundred thirty-three billion, one hundred ninety-three million, nine hundred fifty-one thousand, seven hundred forty-nine".