135788831 has 2 divisors, whose sum is σ = 135788832. Its totient is φ = 135788830.

The previous prime is 135788789. The next prime is 135788837. The reversal of 135788831 is 138887531.

It is a strong prime.

It is an emirp because it is prime and its reverse (138887531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135788831 - 2⁶ = 135788767 is a prime.

It is a super-2 number, since 2×135788831² = 36877213248693122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135788837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67894415 + 67894416.

It is an arithmetic number, because the mean of its divisors is an integer number (67894416).

Almost surely, 2^135788831 is an apocalyptic number.

135788831 is a deficient number, since it is larger than the sum of its proper divisors (1).

135788831 is an equidigital number, since it uses as much as digits as its factorization.

135788831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 161280, while the sum is 44.

The square root of 135788831 is about 11652.8464762907. The cubic root of 135788831 is about 513.9900160566.

The spelling of 135788831 in words is "one hundred thirty-five million, seven hundred eighty-eight thousand, eight hundred thirty-one".