158251097 has 2 divisors, whose sum is σ = 158251098. Its totient is φ = 158251096.

The previous prime is 158251087. The next prime is 158251099. The reversal of 158251097 is 790152851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141514816 + 16736281 = 11896^2 + 4091^2 .

It is an emirp because it is prime and its reverse (790152851) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 158251097 - 2⁴ = 158251081 is a prime.

Together with 158251099, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 158251097.

It is not a weakly prime, because it can be changed into another prime (158251099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79125548 + 79125549.

It is an arithmetic number, because the mean of its divisors is an integer number (79125549).

Almost surely, 2^158251097 is an apocalyptic number.

It is an amenable number.

158251097 is a deficient number, since it is larger than the sum of its proper divisors (1).

158251097 is an equidigital number, since it uses as much as digits as its factorization.

158251097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 38.

The square root of 158251097 is about 12579.7892271691. The cubic root of 158251097 is about 540.8982500835.

The spelling of 158251097 in words is "one hundred fifty-eight million, two hundred fifty-one thousand, ninety-seven".