135245791 has 2 divisors, whose sum is σ = 135245792. Its totient is φ = 135245790.

The previous prime is 135245701. The next prime is 135245801. The reversal of 135245791 is 197542531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135245791 - 2²⁷ = 1028063 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135245791.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135245701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67622895 + 67622896.

It is an arithmetic number, because the mean of its divisors is an integer number (67622896).

Almost surely, 2^135245791 is an apocalyptic number.

135245791 is a deficient number, since it is larger than the sum of its proper divisors (1).

135245791 is an equidigital number, since it uses as much as digits as its factorization.

135245791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37800, while the sum is 37.

The square root of 135245791 is about 11629.5223891611. The cubic root of 135245791 is about 513.3039261372.

The spelling of 135245791 in words is "one hundred thirty-five million, two hundred forty-five thousand, seven hundred ninety-one".