133037520731 has 2 divisors, whose sum is σ = 133037520732. Its totient is φ = 133037520730.

The previous prime is 133037520701. The next prime is 133037520769. The reversal of 133037520731 is 137025730331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133037520731 - 2²⁶ = 132970411867 is a prime.

It is a super-3 number, since 3×133037520731³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 133037520691 and 133037520700.

It is not a weakly prime, because it can be changed into another prime (133037520701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66518760365 + 66518760366.

It is an arithmetic number, because the mean of its divisors is an integer number (66518760366).

Almost surely, 2^133037520731 is an apocalyptic number.

133037520731 is a deficient number, since it is larger than the sum of its proper divisors (1).

133037520731 is an equidigital number, since it uses as much as digits as its factorization.

133037520731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39690, while the sum is 35.

The spelling of 133037520731 in words is "one hundred thirty-three billion, thirty-seven million, five hundred twenty thousand, seven hundred thirty-one".