135156963769 has 3 divisors (see below), whose sum is σ = 135157331407. Its totient is φ = 135156596132.

The previous prime is 135156963763. The next prime is 135156963787. The reversal of 135156963769 is 967369651531.

The square root of 135156963769 is 367637.

It is a perfect power (a square), and thus also a powerful number.

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.

It can be written as a sum of positive squares in only one way, i.e., 122475501225 + 12681462544 = 349965^2 + 112612^2 .

It is not a de Polignac number, because 135156963769 - 2⁵ = 135156963737 is a prime.

It is a super-2 number, since 2×135156963769² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135156963763) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 183819 + ... + 551455.

Almost surely, 2^135156963769 is an apocalyptic number.

135156963769 is the 367637-th square number.

135156963769 is the 183819-th centered octagonal number.

It is an amenable number.

135156963769 is a deficient number, since it is larger than the sum of its proper divisors (367638).

135156963769 is an frugal number, since it uses more digits than its factorization.

135156963769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735274 (or 367637 counting only the distinct ones).

The product of its digits is 27556200, while the sum is 61.

The spelling of 135156963769 in words is "one hundred thirty-five billion, one hundred fifty-six million, nine hundred sixty-three thousand, seven hundred sixty-nine".