158347913 has 2 divisors, whose sum is σ = 158347914. Its totient is φ = 158347912.

The previous prime is 158347873. The next prime is 158347949. The reversal of 158347913 is 319743851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 154455184 + 3892729 = 12428^2 + 1973^2 .

It is a cyclic number.

It is not a de Polignac number, because 158347913 - 2¹² = 158343817 is a prime.

It is not a weakly prime, because it can be changed into another prime (158347993) 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, 79173956 + 79173957.

It is an arithmetic number, because the mean of its divisors is an integer number (79173957).

Almost surely, 2^158347913 is an apocalyptic number.

It is an amenable number.

158347913 is a deficient number, since it is larger than the sum of its proper divisors (1).

158347913 is an equidigital number, since it uses as much as digits as its factorization.

158347913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 41.

The square root of 158347913 is about 12583.6367159895. The cubic root of 158347913 is about 541.0085324772.

The spelling of 158347913 in words is "one hundred fifty-eight million, three hundred forty-seven thousand, nine hundred thirteen".