135497463727 has 4 divisors (see below), whose sum is σ = 135498275056. Its totient is φ = 135496652400.

The previous prime is 135497463713. The next prime is 135497463733. The reversal of 135497463727 is 727364794531.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 727364794531 = 29 ⋅25081544639.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135497463727 is a prime.

It is a super-3 number, since 3×135497463727³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135497433727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52899 + ... + 523252.

It is an arithmetic number, because the mean of its divisors is an integer number (33874568764).

Almost surely, 2^135497463727 is an apocalyptic number.

135497463727 is a deficient number, since it is larger than the sum of its proper divisors (811329).

135497463727 is an equidigital number, since it uses as much as digits as its factorization.

135497463727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811328.

The product of its digits is 26671680, while the sum is 58.

The spelling of 135497463727 in words is "one hundred thirty-five billion, four hundred ninety-seven million, four hundred sixty-three thousand, seven hundred twenty-seven".