135177267457 has 4 divisors (see below), whose sum is σ = 138830707156. Its totient is φ = 131523827760.

The previous prime is 135177267413. The next prime is 135177267497. The reversal of 135177267457 is 754762771531.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 61839752976 + 73337514481 = 248676^2 + 270809^2 .

It is a cyclic number.

It is not a de Polignac number, because 135177267457 - 2¹¹ = 135177265409 is a prime.

It is a super-2 number, since 2×135177267457² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135177267398 and 135177267407.

It is not an unprimeable number, because it can be changed into a prime (135177267497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1826719794 + ... + 1826719867.

It is an arithmetic number, because the mean of its divisors is an integer number (34707676789).

Almost surely, 2^135177267457 is an apocalyptic number.

It is an amenable number.

135177267457 is a deficient number, since it is larger than the sum of its proper divisors (3653439699).

135177267457 is an equidigital number, since it uses as much as digits as its factorization.

135177267457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3653439698.

The product of its digits is 8643600, while the sum is 55.

The spelling of 135177267457 in words is "one hundred thirty-five billion, one hundred seventy-seven million, two hundred sixty-seven thousand, four hundred fifty-seven".