133630713157 has 4 divisors (see below), whose sum is σ = 133661874060. Its totient is φ = 133599552256.

The previous prime is 133630713149. The next prime is 133630713187. The reversal of 133630713157 is 751317036331.

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 116908602561 + 16722110596 = 341919^2 + 129314^2 .

It is a cyclic number.

It is not a de Polignac number, because 133630713157 - 2³ = 133630713149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133630713107) 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 3 ways as a sum of consecutive naturals, for example, 15574018 + ... + 15582595.

It is an arithmetic number, because the mean of its divisors is an integer number (33415468515).

Almost surely, 2^133630713157 is an apocalyptic number.

It is an amenable number.

133630713157 is a deficient number, since it is larger than the sum of its proper divisors (31160903).

133630713157 is an equidigital number, since it uses as much as digits as its factorization.

133630713157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31160902.

The product of its (nonzero) digits is 119070, while the sum is 40.

Adding to 133630713157 its reverse (751317036331), we get a palindrome (884947749488).

The spelling of 133630713157 in words is "one hundred thirty-three billion, six hundred thirty million, seven hundred thirteen thousand, one hundred fifty-seven".