158920243 has 2 divisors, whose sum is σ = 158920244. Its totient is φ = 158920242.

The previous prime is 158920231. The next prime is 158920249. The reversal of 158920243 is 342029851.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 158920243 - 2¹³ = 158912051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 158920199 and 158920208.

It is not a weakly prime, because it can be changed into another prime (158920249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79460121 + 79460122.

It is an arithmetic number, because the mean of its divisors is an integer number (79460122).

Almost surely, 2^158920243 is an apocalyptic number.

158920243 is a deficient number, since it is larger than the sum of its proper divisors (1).

158920243 is an equidigital number, since it uses as much as digits as its factorization.

158920243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 158920243 is about 12606.3572454536. The cubic root of 158920243 is about 541.6595527692.

The spelling of 158920243 in words is "one hundred fifty-eight million, nine hundred twenty thousand, two hundred forty-three".