158433169 has 2 divisors, whose sum is σ = 158433170. Its totient is φ = 158433168.

The previous prime is 158433167. The next prime is 158433181. The reversal of 158433169 is 961334851.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 157251600 + 1181569 = 12540^2 + 1087^2 .

It is a cyclic number.

It is not a de Polignac number, because 158433169 - 2¹ = 158433167 is a prime.

It is a super-2 number, since 2×158433169² = 50202138078765122, which contains 22 as substring.

Together with 158433167, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (158433167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79216584 + 79216585.

It is an arithmetic number, because the mean of its divisors is an integer number (79216585).

Almost surely, 2^158433169 is an apocalyptic number.

It is an amenable number.

158433169 is a deficient number, since it is larger than the sum of its proper divisors (1).

158433169 is an equidigital number, since it uses as much as digits as its factorization.

158433169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 40.

The square root of 158433169 is about 12587.0238340920. The cubic root of 158433169 is about 541.1056097444.

The spelling of 158433169 in words is "one hundred fifty-eight million, four hundred thirty-three thousand, one hundred sixty-nine".