161406103 has 2 divisors, whose sum is σ = 161406104. Its totient is φ = 161406102.

The previous prime is 161406097. The next prime is 161406127. The reversal of 161406103 is 301604161.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161406103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161406163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80703051 + 80703052.

It is an arithmetic number, because the mean of its divisors is an integer number (80703052).

Almost surely, 2^161406103 is an apocalyptic number.

161406103 is a deficient number, since it is larger than the sum of its proper divisors (1).

161406103 is an equidigital number, since it uses as much as digits as its factorization.

161406103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 161406103 is about 12704.5701619535. The cubic root of 161406103 is about 544.4692001130.

The spelling of 161406103 in words is "one hundred sixty-one million, four hundred six thousand, one hundred three".