135471137723 has 2 divisors, whose sum is σ = 135471137724. Its totient is φ = 135471137722.

The previous prime is 135471137717. The next prime is 135471137771. The reversal of 135471137723 is 327731174531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 135471137723 - 2¹⁴ = 135471121339 is a prime.

It is not a weakly prime, because it can be changed into another prime (135471137323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67735568861 + 67735568862.

It is an arithmetic number, because the mean of its divisors is an integer number (67735568862).

Almost surely, 2^135471137723 is an apocalyptic number.

135471137723 is a deficient number, since it is larger than the sum of its proper divisors (1).

135471137723 is an equidigital number, since it uses as much as digits as its factorization.

135471137723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 370440, while the sum is 44.

The spelling of 135471137723 in words is "one hundred thirty-five billion, four hundred seventy-one million, one hundred thirty-seven thousand, seven hundred twenty-three".