132999971 has 4 divisors (see below), whose sum is σ = 143230752. Its totient is φ = 122769192.

The previous prime is 132999917. The next prime is 132999973. The reversal of 132999971 is 179999231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 179999231 = 137 ⋅1313863.

It is not a de Polignac number, because 132999971 - 2¹⁰ = 132998947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132999973) 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 3 ways as a sum of consecutive naturals, for example, 5115371 + ... + 5115396.

It is an arithmetic number, because the mean of its divisors is an integer number (35807688).

Almost surely, 2^132999971 is an apocalyptic number.

132999971 is a deficient number, since it is larger than the sum of its proper divisors (10230781).

132999971 is a wasteful number, since it uses less digits than its factorization.

132999971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10230780.

The product of its digits is 275562, while the sum is 50.

The square root of 132999971 is about 11532.5613373613. The cubic root of 132999971 is about 510.4468351000.

The spelling of 132999971 in words is "one hundred thirty-two million, nine hundred ninety-nine thousand, nine hundred seventy-one".