158040097 has 2 divisors, whose sum is σ = 158040098. Its totient is φ = 158040096.

The previous prime is 158040089. The next prime is 158040101. The reversal of 158040097 is 790040851.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116553616 + 41486481 = 10796^2 + 6441^2 .

It is an emirp because it is prime and its reverse (790040851) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 158040097 - 2³ = 158040089 is a prime.

It is not a weakly prime, because it can be changed into another prime (158040067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79020048 + 79020049.

It is an arithmetic number, because the mean of its divisors is an integer number (79020049).

Almost surely, 2^158040097 is an apocalyptic number.

It is an amenable number.

158040097 is a deficient number, since it is larger than the sum of its proper divisors (1).

158040097 is an equidigital number, since it uses as much as digits as its factorization.

158040097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 158040097 is about 12571.3999618181. The cubic root of 158040097 is about 540.6577456059.

The spelling of 158040097 in words is "one hundred fifty-eight million, forty thousand, ninety-seven".