132511891 has 2 divisors, whose sum is σ = 132511892. Its totient is φ = 132511890.

The previous prime is 132511879. The next prime is 132511913. The reversal of 132511891 is 198115231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 132511891 - 2¹¹ = 132509843 is a prime.

It is not a weakly prime, because it can be changed into another prime (132511831) 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, 66255945 + 66255946.

It is an arithmetic number, because the mean of its divisors is an integer number (66255946).

Almost surely, 2^132511891 is an apocalyptic number.

132511891 is a deficient number, since it is larger than the sum of its proper divisors (1).

132511891 is an equidigital number, since it uses as much as digits as its factorization.

132511891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 31.

The square root of 132511891 is about 11511.3809336673. The cubic root of 132511891 is about 509.8216613412.

The spelling of 132511891 in words is "one hundred thirty-two million, five hundred eleven thousand, eight hundred ninety-one".