158373689 has 2 divisors, whose sum is σ = 158373690. Its totient is φ = 158373688.

The previous prime is 158373679. The next prime is 158373701. The reversal of 158373689 is 986373851.

It is a happy number.

158373689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110418064 + 47955625 = 10508^2 + 6925^2 .

It is a cyclic number.

It is not a de Polignac number, because 158373689 - 2¹⁶ = 158308153 is a prime.

It is not a weakly prime, because it can be changed into another prime (158373659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79186844 + 79186845.

It is an arithmetic number, because the mean of its divisors is an integer number (79186845).

Almost surely, 2^158373689 is an apocalyptic number.

It is an amenable number.

158373689 is a deficient number, since it is larger than the sum of its proper divisors (1).

158373689 is an equidigital number, since it uses as much as digits as its factorization.

158373689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 50.

The square root of 158373689 is about 12584.6608615409. The cubic root of 158373689 is about 541.0378861518.

The spelling of 158373689 in words is "one hundred fifty-eight million, three hundred seventy-three thousand, six hundred eighty-nine".