158941609 has 8 divisors (see below), whose sum is σ = 160056000. Its totient is φ = 157831632.

The previous prime is 158941591. The next prime is 158941633. The reversal of 158941609 is 906149851.

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

It is a cyclic number.

It is not a de Polignac number, because 158941609 - 2⁵ = 158941577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158941009) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 101172 + ... + 102730.

It is an arithmetic number, because the mean of its divisors is an integer number (20007000).

Almost surely, 2^158941609 is an apocalyptic number.

It is an amenable number.

158941609 is a deficient number, since it is larger than the sum of its proper divisors (1114391).

158941609 is a wasteful number, since it uses less digits than its factorization.

158941609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2207.

The product of its (nonzero) digits is 77760, while the sum is 43.

The square root of 158941609 is about 12607.2046465503. The cubic root of 158941609 is about 541.6838261178.

The spelling of 158941609 in words is "one hundred fifty-eight million, nine hundred forty-one thousand, six hundred nine".