158947219 has 2 divisors, whose sum is σ = 158947220. Its totient is φ = 158947218.

The previous prime is 158947211. The next prime is 158947223. The reversal of 158947219 is 912749851.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 158947219 - 2³ = 158947211 is a prime.

It is a super-2 number, since 2×158947219² = 50528436855667922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (158947211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79473609 + 79473610.

It is an arithmetic number, because the mean of its divisors is an integer number (79473610).

Almost surely, 2^158947219 is an apocalyptic number.

158947219 is a deficient number, since it is larger than the sum of its proper divisors (1).

158947219 is an equidigital number, since it uses as much as digits as its factorization.

158947219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 46.

The square root of 158947219 is about 12607.4271364145. The cubic root of 158947219 is about 541.6901991302.

The spelling of 158947219 in words is "one hundred fifty-eight million, nine hundred forty-seven thousand, two hundred nineteen".