158180947 has 8 divisors (see below), whose sum is σ = 169329600. Its totient is φ = 147314664.

The previous prime is 158180927. The next prime is 158180951. The reversal of 158180947 is 749081851.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-158180947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158180917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69433 + ... + 71674.

It is an arithmetic number, because the mean of its divisors is an integer number (21166200).

Almost surely, 2^158180947 is an apocalyptic number.

158180947 is a deficient number, since it is larger than the sum of its proper divisors (11148653).

158180947 is a wasteful number, since it uses less digits than its factorization.

158180947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141185.

The product of its (nonzero) digits is 80640, while the sum is 43.

The square root of 158180947 is about 12577.0007155919. Note that the first 3 decimals coincide. The cubic root of 158180947 is about 540.8183146286.

It can be divided in two parts, 1581 and 80947, that added together give a palindrome (82528).

The spelling of 158180947 in words is "one hundred fifty-eight million, one hundred eighty thousand, nine hundred forty-seven".