132991969 has 8 divisors (see below), whose sum is σ = 153616608. Its totient is φ = 113789760.

The previous prime is 132991967. The next prime is 132991981. The reversal of 132991969 is 969199231.

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 132991969 - 2¹ = 132991967 is a prime.

It is a super-2 number, since 2×132991969² = 35373727636993922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132991967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 355407 + ... + 355780.

It is an arithmetic number, because the mean of its divisors is an integer number (19202076).

Almost surely, 2^132991969 is an apocalyptic number.

It is an amenable number.

132991969 is a deficient number, since it is larger than the sum of its proper divisors (20624639).

132991969 is a wasteful number, since it uses less digits than its factorization.

132991969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711215.

The product of its digits is 236196, while the sum is 49.

The square root of 132991969 is about 11532.2144014062. The cubic root of 132991969 is about 510.4365978108.

The spelling of 132991969 in words is "one hundred thirty-two million, nine hundred ninety-one thousand, nine hundred sixty-nine".