133764131057 has 4 divisors (see below), whose sum is σ = 134011385076. Its totient is φ = 133516877040.

The previous prime is 133764131051. The next prime is 133764131069. The reversal of 133764131057 is 750131467331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 47189307361 + 86574823696 = 217231^2 + 294236^2 .

It is a cyclic number.

It is not a de Polignac number, because 133764131057 - 2⁶ = 133764130993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133764131051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123626198 + ... + 123627279.

It is an arithmetic number, because the mean of its divisors is an integer number (33502846269).

Almost surely, 2^133764131057 is an apocalyptic number.

It is an amenable number.

133764131057 is a deficient number, since it is larger than the sum of its proper divisors (247254019).

133764131057 is an equidigital number, since it uses as much as digits as its factorization.

133764131057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247254018.

The product of its (nonzero) digits is 158760, while the sum is 41.

Adding to 133764131057 its reverse (750131467331), we get a palindrome (883895598388).

The spelling of 133764131057 in words is "one hundred thirty-three billion, seven hundred sixty-four million, one hundred thirty-one thousand, fifty-seven".