132102721 has 2 divisors, whose sum is σ = 132102722. Its totient is φ = 132102720.

The previous prime is 132102713. The next prime is 132102727. The reversal of 132102721 is 127201231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92852496 + 39250225 = 9636^2 + 6265^2 .

It is a cyclic number.

It is not a de Polignac number, because 132102721 - 2³ = 132102713 is a prime.

It is a super-2 number, since 2×132102721² = 34902257791207682, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (132102727) 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 as a sum of consecutive naturals, namely, 66051360 + 66051361.

It is an arithmetic number, because the mean of its divisors is an integer number (66051361).

Almost surely, 2^132102721 is an apocalyptic number.

It is an amenable number.

132102721 is a deficient number, since it is larger than the sum of its proper divisors (1).

132102721 is an equidigital number, since it uses as much as digits as its factorization.

132102721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 132102721 is about 11493.5947814424. The cubic root of 132102721 is about 509.2963781498.

Adding to 132102721 its reverse (127201231), we get a palindrome (259303952).

It can be divided in two parts, 13210 and 2721, that added together give a triangular number (15931 = T₁₇₈).

The spelling of 132102721 in words is "one hundred thirty-two million, one hundred two thousand, seven hundred twenty-one".