188016461 has 2 divisors, whose sum is σ = 188016462. Its totient is φ = 188016460.

The previous prime is 188016359. The next prime is 188016463. The reversal of 188016461 is 164610881.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 161442436 + 26574025 = 12706^2 + 5155^2 .

It is a cyclic number.

It is not a de Polignac number, because 188016461 - 2¹⁴ = 188000077 is a prime.

Together with 188016463, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (188016463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94008230 + 94008231.

It is an arithmetic number, because the mean of its divisors is an integer number (94008231).

Almost surely, 2^188016461 is an apocalyptic number.

It is an amenable number.

188016461 is a deficient number, since it is larger than the sum of its proper divisors (1).

188016461 is an equidigital number, since it uses as much as digits as its factorization.

188016461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 188016461 is about 13711.9094585692. The cubic root of 188016461 is about 572.8821508583.

The spelling of 188016461 in words is "one hundred eighty-eight million, sixteen thousand, four hundred sixty-one".