132687971 has 12 divisors (see below), whose sum is σ = 144169872. Its totient is φ = 121396128.

The previous prime is 132687959. The next prime is 132687979. The reversal of 132687971 is 179786231.

It is not a de Polignac number, because 132687971 - 2¹⁸ = 132425827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132687979) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 504386 + ... + 504648.

It is an arithmetic number, because the mean of its divisors is an integer number (12014156).

Almost surely, 2^132687971 is an apocalyptic number.

132687971 is a deficient number, since it is larger than the sum of its proper divisors (11481901).

132687971 is an equidigital number, since it uses as much as digits as its factorization.

132687971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670 (or 473 counting only the distinct ones).

The product of its digits is 127008, while the sum is 44.

The square root of 132687971 is about 11519.0264779624. The cubic root of 132687971 is about 510.0473760936.

The spelling of 132687971 in words is "one hundred thirty-two million, six hundred eighty-seven thousand, nine hundred seventy-one".