158949223 has 2 divisors, whose sum is σ = 158949224. Its totient is φ = 158949222.

The previous prime is 158949221. The next prime is 158949227. The reversal of 158949223 is 322949851.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 158949223 - 2¹ = 158949221 is a prime.

Together with 158949221, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 158949223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158949221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79474611 + 79474612.

It is an arithmetic number, because the mean of its divisors is an integer number (79474612).

Almost surely, 2^158949223 is an apocalyptic number.

158949223 is a deficient number, since it is larger than the sum of its proper divisors (1).

158949223 is an equidigital number, since it uses as much as digits as its factorization.

158949223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 43.

The square root of 158949223 is about 12607.5066131254. The cubic root of 158949223 is about 541.6924756565.

The spelling of 158949223 in words is "one hundred fifty-eight million, nine hundred forty-nine thousand, two hundred twenty-three".