132857569 has 4 divisors (see below), whose sum is σ = 143077396. Its totient is φ = 122637744.

The previous prime is 132857561. The next prime is 132857581. The reversal of 132857569 is 965758231.

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 10975969 + 121881600 = 3313^2 + 11040^2 .

It is a cyclic number.

It is not a de Polignac number, because 132857569 - 2³ = 132857561 is a prime.

It is a super-2 number, since 2×132857569² = 35302267281179522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132857561) 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, 5109894 + ... + 5109919.

It is an arithmetic number, because the mean of its divisors is an integer number (35769349).

Almost surely, 2^132857569 is an apocalyptic number.

It is an amenable number.

132857569 is a deficient number, since it is larger than the sum of its proper divisors (10219827).

132857569 is a wasteful number, since it uses less digits than its factorization.

132857569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10219826.

The product of its digits is 453600, while the sum is 46.

The square root of 132857569 is about 11526.3857735198. The cubic root of 132857569 is about 510.2645929348.

It can be divided in two parts, 13 and 2857569, that added together give a palindrome (2857582).

The spelling of 132857569 in words is "one hundred thirty-two million, eight hundred fifty-seven thousand, five hundred sixty-nine".