135452369 has 8 divisors (see below), whose sum is σ = 145973352. Its totient is φ = 124945920.

The previous prime is 135452347. The next prime is 135452389. The reversal of 135452369 is 963254531.

It can be written as a sum of positive squares in 4 ways, for example, as 3478225 + 131974144 = 1865^2 + 11488^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135452369 - 2²⁰ = 134403793 is a prime.

It is a super-2 number, since 2×135452369² = 36694688535424322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135452389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23009 + ... + 28289.

It is an arithmetic number, because the mean of its divisors is an integer number (18246669).

Almost surely, 2^135452369 is an apocalyptic number.

It is an amenable number.

135452369 is a deficient number, since it is larger than the sum of its proper divisors (10520983).

135452369 is a wasteful number, since it uses less digits than its factorization.

135452369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7267.

The product of its digits is 97200, while the sum is 38.

The square root of 135452369 is about 11638.4006203602. The cubic root of 135452369 is about 513.5651378550.

The spelling of 135452369 in words is "one hundred thirty-five million, four hundred fifty-two thousand, three hundred sixty-nine".