158223071 has 2 divisors, whose sum is σ = 158223072. Its totient is φ = 158223070.

The previous prime is 158223067. The next prime is 158223119. The reversal of 158223071 is 170322851.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 158223071 - 2² = 158223067 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158223001) 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, 79111535 + 79111536.

It is an arithmetic number, because the mean of its divisors is an integer number (79111536).

Almost surely, 2^158223071 is an apocalyptic number.

158223071 is a deficient number, since it is larger than the sum of its proper divisors (1).

158223071 is an equidigital number, since it uses as much as digits as its factorization.

158223071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 158223071 is about 12578.6752482127. The cubic root of 158223071 is about 540.8663174784.

The spelling of 158223071 in words is "one hundred fifty-eight million, two hundred twenty-three thousand, seventy-one".