158500123 has 2 divisors, whose sum is σ = 158500124. Its totient is φ = 158500122.

The previous prime is 158500099. The next prime is 158500127. The reversal of 158500123 is 321005851.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 158500123 - 2⁹ = 158499611 is a prime.

It is not a weakly prime, because it can be changed into another prime (158500127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79250061 + 79250062.

It is an arithmetic number, because the mean of its divisors is an integer number (79250062).

Almost surely, 2^158500123 is an apocalyptic number.

158500123 is a deficient number, since it is larger than the sum of its proper divisors (1).

158500123 is an equidigital number, since it uses as much as digits as its factorization.

158500123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 158500123 is about 12589.6831969673. The cubic root of 158500123 is about 541.1818229156.

Adding to 158500123 its reverse (321005851), we get a palindrome (479505974).

The spelling of 158500123 in words is "one hundred fifty-eight million, five hundred thousand, one hundred twenty-three".