158845013 has 2 divisors, whose sum is σ = 158845014. Its totient is φ = 158845012.

The previous prime is 158845009. The next prime is 158845019. The reversal of 158845013 is 310548851.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 153190129 + 5654884 = 12377^2 + 2378^2 .

It is a cyclic number.

It is not a de Polignac number, because 158845013 - 2² = 158845009 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158845019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79422506 + 79422507.

It is an arithmetic number, because the mean of its divisors is an integer number (79422507).

Almost surely, 2^158845013 is an apocalyptic number.

It is an amenable number.

158845013 is a deficient number, since it is larger than the sum of its proper divisors (1).

158845013 is an equidigital number, since it uses as much as digits as its factorization.

158845013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19200, while the sum is 35.

The square root of 158845013 is about 12603.3730802512. The cubic root of 158845013 is about 541.5740686315.

The spelling of 158845013 in words is "one hundred fifty-eight million, eight hundred forty-five thousand, thirteen".