158993345 has 16 divisors (see below), whose sum is σ = 221305728. Its totient is φ = 107395200.

The previous prime is 158993323. The next prime is 158993371. The reversal of 158993345 is 543399851.

It is a de Polignac number, because none of the positive numbers 2^k-158993345 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 158993345.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31556 + ... + 36245.

It is an arithmetic number, because the mean of its divisors is an integer number (13831608).

Almost surely, 2^158993345 is an apocalyptic number.

It is an amenable number.

158993345 is a deficient number, since it is larger than the sum of its proper divisors (62312383).

158993345 is an equidigital number, since it uses as much as digits as its factorization.

158993345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67880.

The product of its digits is 583200, while the sum is 47.

The square root of 158993345 is about 12609.2563222420. The cubic root of 158993345 is about 541.7425930123.

The spelling of 158993345 in words is "one hundred fifty-eight million, nine hundred ninety-three thousand, three hundred forty-five".