135930491 has 2 divisors, whose sum is σ = 135930492. Its totient is φ = 135930490.

The previous prime is 135930467. The next prime is 135930497. The reversal of 135930491 is 194039531.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135930491 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (135930497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67965245 + 67965246.

It is an arithmetic number, because the mean of its divisors is an integer number (67965246).

Almost surely, 2^135930491 is an apocalyptic number.

135930491 is a deficient number, since it is larger than the sum of its proper divisors (1).

135930491 is an equidigital number, since it uses as much as digits as its factorization.

135930491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 135930491 is about 11658.9232350162. The cubic root of 135930491 is about 514.1686918230.

The spelling of 135930491 in words is "one hundred thirty-five million, nine hundred thirty thousand, four hundred ninety-one".