161026423 has 2 divisors, whose sum is σ = 161026424. Its totient is φ = 161026422.

The previous prime is 161026417. The next prime is 161026433. The reversal of 161026423 is 324620161.

161026423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161026423 is a prime.

It is a zygodrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161026403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80513211 + 80513212.

It is an arithmetic number, because the mean of its divisors is an integer number (80513212).

Almost surely, 2^161026423 is an apocalyptic number.

161026423 is a deficient number, since it is larger than the sum of its proper divisors (1).

161026423 is an equidigital number, since it uses as much as digits as its factorization.

161026423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 161026423 is about 12689.6187097958. The cubic root of 161026423 is about 544.0419416462.

Adding to 161026423 its reverse (324620161), we get a palindrome (485646584).

The spelling of 161026423 in words is "one hundred sixty-one million, twenty-six thousand, four hundred twenty-three".