133406238937 has 2 divisors, whose sum is σ = 133406238938. Its totient is φ = 133406238936.

The previous prime is 133406238907. The next prime is 133406238949. The reversal of 133406238937 is 739832604331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119680710601 + 13725528336 = 345949^2 + 117156^2 .

It is a cyclic number.

It is not a de Polignac number, because 133406238937 - 2¹⁵ = 133406206169 is a prime.

It is not a weakly prime, because it can be changed into another prime (133406238907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66703119468 + 66703119469.

It is an arithmetic number, because the mean of its divisors is an integer number (66703119469).

Almost surely, 2^133406238937 is an apocalyptic number.

It is an amenable number.

133406238937 is a deficient number, since it is larger than the sum of its proper divisors (1).

133406238937 is an equidigital number, since it uses as much as digits as its factorization.

133406238937 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1959552, while the sum is 49.

The spelling of 133406238937 in words is "one hundred thirty-three billion, four hundred six million, two hundred thirty-eight thousand, nine hundred thirty-seven".