186196481 has 2 divisors, whose sum is σ = 186196482. Its totient is φ = 186196480.

The previous prime is 186196471. The next prime is 186196489. The reversal of 186196481 is 184691681.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 185395456 + 801025 = 13616^2 + 895^2 .

It is a cyclic number.

It is not a de Polignac number, because 186196481 - 2¹⁴ = 186180097 is a prime.

It is a super-2 number, since 2×186196481² = 69338259073566722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (186196489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93098240 + 93098241.

It is an arithmetic number, because the mean of its divisors is an integer number (93098241).

Almost surely, 2^186196481 is an apocalyptic number.

It is an amenable number.

186196481 is a deficient number, since it is larger than the sum of its proper divisors (1).

186196481 is an equidigital number, since it uses as much as digits as its factorization.

186196481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 44.

The square root of 186196481 is about 13645.3831386297. The cubic root of 186196481 is about 571.0276741147.

The spelling of 186196481 in words is "one hundred eighty-six million, one hundred ninety-six thousand, four hundred eighty-one".