158040089 has 2 divisors, whose sum is σ = 158040090.
Its totient is φ = 158040088.
The previous prime is 158040083. The next prime is 158040097. The reversal of 158040089 is 980040851.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 86806489 + 71233600 = 9317^2 + 8440^2
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-158040089 is a prime.
It is a super-2 number, since 2×1580400892 = 49953339462255842, which contains 22 as substring.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (158040083) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79020044 + 79020045.
It is an arithmetic number, because the mean of its divisors is an integer number (79020045).
Almost surely, 2158040089 is an apocalyptic number.
It is an amenable number.
158040089 is a deficient number, since it is larger than the sum of its proper divisors (1).
158040089 is an equidigital number, since it uses as much as digits as its factorization.
158040089 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 11520, while the sum is 35.
The square root of 158040089 is about 12571.3996436355.
The cubic root of 158040089 is about 540.6577364831.
The spelling of 158040089 in words is "one hundred fifty-eight million, forty thousand, eighty-nine".