132017981 has 2 divisors, whose sum is σ = 132017982. Its totient is φ = 132017980.

The previous prime is 132017959. The next prime is 132017989. The reversal of 132017981 is 189710231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124121881 + 7896100 = 11141^2 + 2810^2 .

It is a cyclic number.

It is not a de Polignac number, because 132017981 - 2¹⁰ = 132016957 is a prime.

It is a super-2 number, since 2×132017981² = 34857494614632722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (132017989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66008990 + 66008991.

It is an arithmetic number, because the mean of its divisors is an integer number (66008991).

Almost surely, 2^132017981 is an apocalyptic number.

It is an amenable number.

132017981 is a deficient number, since it is larger than the sum of its proper divisors (1).

132017981 is an equidigital number, since it uses as much as digits as its factorization.

132017981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 32.

The square root of 132017981 is about 11489.9077890121. The cubic root of 132017981 is about 509.1874553202.

The spelling of 132017981 in words is "one hundred thirty-two million, seventeen thousand, nine hundred eighty-one".