161026343 has 2 divisors, whose sum is σ = 161026344. Its totient is φ = 161026342.

The previous prime is 161026339. The next prime is 161026361. The reversal of 161026343 is 343620161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 161026343 - 2² = 161026339 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161026373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80513171 + 80513172.

It is an arithmetic number, because the mean of its divisors is an integer number (80513172).

Almost surely, 2^161026343 is an apocalyptic number.

161026343 is a deficient number, since it is larger than the sum of its proper divisors (1).

161026343 is an equidigital number, since it uses as much as digits as its factorization.

161026343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 161026343 is about 12689.6155576125. The cubic root of 161026343 is about 544.0418515506.

The spelling of 161026343 in words is "one hundred sixty-one million, twenty-six thousand, three hundred forty-three".