161803463 has 2 divisors, whose sum is σ = 161803464. Its totient is φ = 161803462.

The previous prime is 161803427. The next prime is 161803483. The reversal of 161803463 is 364308161.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 161803463 - 2¹² = 161799367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161803403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80901731 + 80901732.

It is an arithmetic number, because the mean of its divisors is an integer number (80901732).

Almost surely, 2^161803463 is an apocalyptic number.

161803463 is a deficient number, since it is larger than the sum of its proper divisors (1).

161803463 is an equidigital number, since it uses as much as digits as its factorization.

161803463 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 161803463 is about 12720.1990157387. The cubic root of 161803463 is about 544.9156371396.

The spelling of 161803463 in words is "one hundred sixty-one million, eight hundred three thousand, four hundred sixty-three".