158069197 has 18 divisors (see below), whose sum is σ = 187702634. Its totient is φ = 132227040.

The previous prime is 158069159. The next prime is 158069203. The reversal of 158069197 is 791960851.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 18498601 + 139570596 = 4301^2 + 11814^2 .

It is a de Polignac number, because none of the positive numbers 2^k-158069197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158069497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 498483 + ... + 498799.

Almost surely, 2^158069197 is an apocalyptic number.

It is an amenable number.

158069197 is a deficient number, since it is larger than the sum of its proper divisors (29633437).

158069197 is an equidigital number, since it uses as much as digits as its factorization.

158069197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669 (or 341 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 46.

The square root of 158069197 is about 12572.5572975429. The cubic root of 158069197 is about 540.6909274273.

The spelling of 158069197 in words is "one hundred fifty-eight million, sixty-nine thousand, one hundred ninety-seven".