132969869 has 4 divisors (see below), whose sum is σ = 140791644. Its totient is φ = 125148096.

The previous prime is 132969857. The next prime is 132969883. The reversal of 132969869 is 968969231.

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 91431844 + 41538025 = 9562^2 + 6445^2 .

It is a cyclic number.

It is not a de Polignac number, because 132969869 - 2⁴ = 132969853 is a prime.

It is a super-2 number, since 2×132969869² = 35361972123754322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 132969869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132969839) 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, 3910862 + ... + 3910895.

It is an arithmetic number, because the mean of its divisors is an integer number (35197911).

Almost surely, 2^132969869 is an apocalyptic number.

It is an amenable number.

132969869 is a deficient number, since it is larger than the sum of its proper divisors (7821775).

132969869 is an equidigital number, since it uses as much as digits as its factorization.

132969869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7821774.

The product of its digits is 1259712, while the sum is 53.

The square root of 132969869 is about 11531.2561761501. The cubic root of 132969869 is about 510.4083222344.

The spelling of 132969869 in words is "one hundred thirty-two million, nine hundred sixty-nine thousand, eight hundred sixty-nine".