133755774257 has 16 divisors (see below), whose sum is σ = 162408177792. Its totient is φ = 107535517440.

The previous prime is 133755774211. The next prime is 133755774259. The reversal of 133755774257 is 752477557331.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 133755774257 - 2¹⁸ = 133755512113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133755774259) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1883219 + ... + 1952952.

It is an arithmetic number, because the mean of its divisors is an integer number (10150511112).

Almost surely, 2^133755774257 is an apocalyptic number.

133755774257 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

133755774257 is a deficient number, since it is larger than the sum of its proper divisors (28652403535).

133755774257 is a wasteful number, since it uses less digits than its factorization.

133755774257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3836488.

The product of its digits is 21609000, while the sum is 56.

The spelling of 133755774257 in words is "one hundred thirty-three billion, seven hundred fifty-five million, seven hundred seventy-four thousand, two hundred fifty-seven".