132157891 has 2 divisors, whose sum is σ = 132157892. Its totient is φ = 132157890.

The previous prime is 132157873. The next prime is 132157897. The reversal of 132157891 is 198751231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 132157891 - 2¹⁷ = 132026819 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 132157891.

It is not a weakly prime, because it can be changed into another prime (132157897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66078945 + 66078946.

It is an arithmetic number, because the mean of its divisors is an integer number (66078946).

Almost surely, 2^132157891 is an apocalyptic number.

132157891 is a deficient number, since it is larger than the sum of its proper divisors (1).

132157891 is an equidigital number, since it uses as much as digits as its factorization.

132157891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 37.

The square root of 132157891 is about 11495.9945633251. The cubic root of 132157891 is about 509.3672673547.

The spelling of 132157891 in words is "one hundred thirty-two million, one hundred fifty-seven thousand, eight hundred ninety-one".