132811969 has 4 divisors (see below), whose sum is σ = 133103044. Its totient is φ = 132520896.

The previous prime is 132811963. The next prime is 132811979. The reversal of 132811969 is 969118231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 969118231 = 19763 ⋅49037.

It can be written as a sum of positive squares in 2 ways, for example, as 93373569 + 39438400 = 9663^2 + 6280^2 .

It is a cyclic number.

It is not a de Polignac number, because 132811969 - 2⁵ = 132811937 is a prime.

It is a super-2 number, since 2×132811969² = 35278038219313922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132811963) 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, 144852 + ... + 145765.

It is an arithmetic number, because the mean of its divisors is an integer number (33275761).

Almost surely, 2^132811969 is an apocalyptic number.

It is an amenable number.

132811969 is a deficient number, since it is larger than the sum of its proper divisors (291075).

132811969 is an equidigital number, since it uses as much as digits as its factorization.

132811969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291074.

The product of its digits is 23328, while the sum is 40.

The square root of 132811969 is about 11524.4075335785. The cubic root of 132811969 is about 510.2062077830.

The spelling of 132811969 in words is "one hundred thirty-two million, eight hundred eleven thousand, nine hundred sixty-nine".