135416381831 has 2 divisors, whose sum is σ = 135416381832. Its totient is φ = 135416381830.

The previous prime is 135416381801. The next prime is 135416381851. The reversal of 135416381831 is 138183614531.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135416381831 - 2⁶ = 135416381767 is a prime.

It is a super-2 number, since 2×135416381831² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135416381801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67708190915 + 67708190916.

It is an arithmetic number, because the mean of its divisors is an integer number (67708190916).

Almost surely, 2^135416381831 is an apocalyptic number.

135416381831 is a deficient number, since it is larger than the sum of its proper divisors (1).

135416381831 is an equidigital number, since it uses as much as digits as its factorization.

135416381831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 44.

The spelling of 135416381831 in words is "one hundred thirty-five billion, four hundred sixteen million, three hundred eighty-one thousand, eight hundred thirty-one".